Advanced Workspace Switcher Widget + Lockscreen Virtual Keyboard (#149)

* Virtual keyboard on lockscreen

Almost whole code was taken from https://github.com/LucasCodingM/customVirtualkeyboard

* AdvancedWorkspaceSwitcher + BottomBar

- AdvancedWorkspaceSwitcher shows opened apps and allows to move to
them
- focusWindow function for niri
- Bottom bar with AdvancedWorkspaceSwitcher

* Cleanup + Styling fixes

* Changed visibility defaults back to true

For advanced workspace switcher

* Formatting + resolved commets

Services/NiriService.qml

@@ -444,6 +444,17 @@ Singleton {
                         }
                     })
     }
+    
+    function focusWindow(windowId) {
+        return send({
+            "Action": {
+    	        "FocusWindow": {
+      		    "id": windowId
+    	   	}
+  	    }
+        })
+    }
+
 
     function getCurrentOutputWorkspaceNumbers() {
         return currentOutputWorkspaces.map(