Propagate config changes to view.

Now, the controller's `initialize` function is called every time the
user's preferences are changed. This was done so that it could re-orient
the service bar every time the configuration is changed, but could be
extended down the line for other configuration options.

app/view/main/MainController.js

@@ -7,9 +7,10 @@ Ext.define('Rambox.view.main.MainController', {
 		const config = ipc.sendSync('getConfig');
 
 		if ( config.left_tabbar === true ) {
-			const mainView = Ext.cq1('app-main');
+			tabPanel.setTabPosition('left');
-			mainView.setTabPosition('left');
+			tabPanel.setTabRotation(0);
-			mainView.setTabRotation(0);
+		} else {
+			tabPanel.setTabPosition('top');
 		}
 	}
 

electron/main.js

@@ -318,6 +318,8 @@ ipcMain.on('setConfig', function(event, values) {
 	// systemtray_indicator
 	updateBadge(mainWindow.getTitle());
 
+	mainWindow.webContents.executeJavaScript('(function(a){if(a)a.controller.initialize(a);})(Ext.cq1("app-main"))');
+
 	switch ( values.window_display_behavior ) {
 		case 'show_taskbar':
 			mainWindow.setSkipTaskbar(false);