dash-frontend: tabs, other fixes (desc)

- set rustfmt line width to 120 columns by default for wgui
- dashboard tabs
- wgui: `remove_children`

dash-frontend/src/tab/home.rs

@@ -0,0 +1,47 @@
+use wgui::{
+	components::button::ComponentButton,
+	parser::{ParseDocumentParams, ParserState},
+};
+
+use crate::tab::{Tab, TabParams, TabType};
+
+pub struct TabHome {
+	#[allow(dead_code)]
+	pub state: ParserState,
+}
+
+impl Tab for TabHome {
+	fn get_type(&self) -> TabType {
+		TabType::Home
+	}
+}
+
+impl TabHome {
+	pub fn new(params: TabParams) -> anyhow::Result<Self> {
+		let state = wgui::parser::parse_from_assets(
+			&ParseDocumentParams {
+				globals: params.globals.clone(),
+				path: "gui/tab/home.xml",
+				extra: Default::default(),
+			},
+			params.layout,
+			params.listeners,
+			params.parent_id,
+		)?;
+
+		let btn_apps = state.fetch_component_as::<ComponentButton>("btn_apps")?;
+		let btn_games = state.fetch_component_as::<ComponentButton>("btn_games")?;
+		let btn_monado = state.fetch_component_as::<ComponentButton>("btn_monado")?;
+		let btn_processes = state.fetch_component_as::<ComponentButton>("btn_processes")?;
+		let btn_settings = state.fetch_component_as::<ComponentButton>("btn_settings")?;
+
+		let frontend = params.frontend;
+		TabType::register_button(frontend.clone(), &btn_apps, TabType::Apps);
+		TabType::register_button(frontend.clone(), &btn_games, TabType::Games);
+		TabType::register_button(frontend.clone(), &btn_monado, TabType::Monado);
+		TabType::register_button(frontend.clone(), &btn_processes, TabType::Processes);
+		TabType::register_button(frontend.clone(), &btn_settings, TabType::Settings);
+
+		Ok(Self { state })
+	}
+}