Migrate settings UI to OGPU themed widgets and add logout

- Replace plain Godot Controls with StatusPanel, ComponentTextInput,
  Toggle, CardButton, and Dropdown components
- Add logout functionality that clears API key or closes session
- Match Steam plugin's settings UI style

core/itch_settings.gd

@@ -1,28 +1,27 @@
-extends Control
+extends MarginContainer
 
 ## itch.io plugin settings screen
 ##
-## NOTE: this uses plain Godot Controls rather than OpenGamepadUI's themed
-## widget set (the ones used by the built-in Steam plugin's settings scene,
-## e.g. its custom StatusIndicator/TextInput components), since this plugin
-## was written without editor access to those scene resources. Swap the
-## nodes below for the themed equivalents if you want it to match the rest
-## of the settings UI pixel-for-pixel.
+## Uses OpenGamepadUI's themed widget set (StatusPanel, ComponentTextInput,
+## Toggle, CardButton, Dropdown) for consistent look with the rest of the
+## settings UI.
 
 const ItchClient := preload("res://plugins/itch/core/itch_client.gd")
 var settings_manager := load("res://core/global/settings_manager.tres") as SettingsManager
 var notification_manager := load("res://core/global/notification_manager.tres") as NotificationManager
 const icon := preload("res://plugins/itch/assets/itch.svg")
 
-@onready var status_label: Label = $%StatusLabel
-@onready var api_key_box: LineEdit = $%ApiKeyInput
-@onready var username_box: LineEdit = $%UsernameInput
-@onready var password_box: LineEdit = $%PasswordInput
-@onready var login_method: OptionButton = $%LoginMethod
-@onready var save_button: Button = $%SaveButton
-@onready var help_label: Label = $%HelpLabel
-@onready var filter_check: CheckBox = $%FilterUnsupported
-@onready var show_purchases_check: CheckBox = $%ShowPurchases
+@onready var status := $%Status as StatusPanel
+@onready var connected_status := $%ConnectedStatus as StatusPanel
+@onready var logged_in_status := $%LoggedInStatus as StatusPanel
+@onready var login_method := $%LoginMethod as Dropdown
+@onready var api_key_box := $%ApiKeyInput as ComponentTextInput
+@onready var username_box := $%UsernameInput as ComponentTextInput
+@onready var password_box := $%PasswordInput as ComponentTextInput
+@onready var save_button := $%SaveButton as CardButton
+@onready var logout_button := $%LogoutButton as CardButton
+@onready var filter_check := $%FilterUnsupported as Toggle
+@onready var show_purchases_check := $%ShowPurchases as Toggle
 @onready var collections_container: VBoxContainer = $%CollectionsContainer
 
 @onready var itch: ItchClient = get_tree().get_first_node_in_group("itch_client")
@@ -31,12 +30,49 @@ var _collection_checks: Dictionary = {}
 
 
 func _ready() -> void:
+	# Configure status indicators
+	status.status = status.STATUS.CANCELLED
+	status.color = "red"
+	var set_running := func():
+		if not itch.client_started:
+			return
+		status.status = status.STATUS.ACTIVE
+		status.color = "green"
+	if itch.client_started:
+		set_running.call()
+	itch.bootstrap_finished.connect(set_running)
+
+	# Configure connected status
+	connected_status.status = connected_status.STATUS.ACTIVE
+	if itch.state != itch.STATE.BOOT:
+		connected_status.color = "green"
+	itch.client_ready.connect(func():
+		connected_status.color = "green"
+	)
+
+	# Configure login status
+	var update_login_status := func(login_status: ItchClient.LOGIN_STATUS):
+		if login_status != ItchClient.LOGIN_STATUS.OK:
+			logged_in_status.status = logged_in_status.STATUS.ACTIVE
+			logged_in_status.color = "gray"
+			return
+		logged_in_status.status = logged_in_status.STATUS.CLOSED
+		logged_in_status.color = "green"
+	itch.logged_in.connect(update_login_status)
+	itch.logged_in.connect(_on_login)
+
+	# Configure login method dropdown
+	login_method.add_item("API Key", 0)
+	login_method.add_item("Username & Password", 1)
+	login_method.selected = 0
+
+	# Load saved settings
 	var api_key := settings_manager.get_value("plugin.itch", "api_key", "") as String
 	api_key_box.text = api_key
 	api_key_box.secret = true
 
 	var saved_method: int = settings_manager.get_value("plugin.itch", "login_method", 0) as int
-	login_method.selected = saved_method
+	login_method.select(saved_method)
 	_on_login_method_changed(saved_method)
 
 	var username := settings_manager.get_value("plugin.itch", "username", "") as String
@@ -45,39 +81,21 @@ func _ready() -> void:
 	filter_check.button_pressed = settings_manager.get_value("plugin.itch", "filter_unsupported", true) as bool
 	show_purchases_check.button_pressed = settings_manager.get_value("plugin.itch", "show_purchases", true) as bool
 
-	_update_status()
-	itch.client_ready.connect(_update_status)
-	itch.logged_in.connect(_on_login)
-
+	# Connect signals
 	save_button.pressed.connect(_on_save_button)
-	filter_check.toggled.connect(_on_filter_toggled)
+	logout_button.pressed.connect(_on_logout_button)
 	login_method.item_selected.connect(_on_login_method_changed)
+	filter_check.toggled.connect(_on_filter_toggled)
 	show_purchases_check.toggled.connect(_on_show_purchases_toggled)
 
 	# Build collection checkboxes once we're logged in.
 	itch.logged_in.connect(_populate_collections.bind(), CONNECT_ONE_SHOT)
 
 
-func _update_status() -> void:
-	if not itch:
-		status_label.text = "Status: itch client not found"
-		return
-	if itch.state == itch.STATE.BOOT:
-		status_label.text = "Status: starting butlerd..."
-		return
-	if not itch.is_logged_in:
-		status_label.text = "Status: connected, not logged in"
-		return
-	var username: String = itch.profile.get("user", {}).get("username", "")
-	status_label.text = "Status: logged in as " + username
-
-
-func _on_login(status: ItchClient.LOGIN_STATUS, _profile: Dictionary) -> void:
-	_update_status()
-
+func _on_login(login_status: ItchClient.LOGIN_STATUS, _profile: Dictionary) -> void:
 	var notify := Notification.new("")
 	notify.icon = icon
-	if status == ItchClient.LOGIN_STATUS.OK:
+	if login_status == ItchClient.LOGIN_STATUS.OK:
 		notify.text = "Successfully logged in to itch.io"
 	else:
 		notify.text = "itch.io login failed. Double check your credentials."
@@ -91,7 +109,6 @@ func _on_login_method_changed(idx: int) -> void:
 	api_key_box.visible = is_api
 	username_box.visible = not is_api
 	password_box.visible = not is_api
-	help_label.visible = is_api
 
 
 func _on_save_button() -> void:
@@ -116,6 +133,26 @@ func _on_save_button() -> void:
 		itch.login_with_password(uname, password)
 
 
+func _on_logout_button() -> void:
+	var method: int = login_method.selected
+
+	# Clear saved credentials
+	if method == 0:
+		settings_manager.set_value("plugin.itch", "api_key", "")
+		api_key_box.text = ""
+	else:
+		settings_manager.set_value("plugin.itch", "username", "")
+		username_box.text = ""
+		password_box.text = ""
+
+	# Logout from butlerd
+	itch.logout()
+
+	var notify := Notification.new("Logged out of itch.io")
+	notify.icon = icon
+	notification_manager.show(notify)
+
+
 ## Fetches the user's collections and builds a checkbox for each one.
 func _populate_collections(_status: ItchClient.LOGIN_STATUS, _profile: Dictionary) -> void:
 	if not itch.is_logged_in: