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

Modules/Settings/TopBarTab.qml

@@ -20,6 +20,12 @@ Item {
             "description": "Shows current workspace and allows switching",
             "icon": "view_module",
             "enabled": true
+        }, {
+            "id": "advancedWorkspaceSwitcher",
+            "text": "Advanced Workspace Switcher",
+            "description": "Shows workspaced with opened apps and allows switching",
+            "icon": "view_module",
+            "enabled": true
         }, {
             "id": "focusedWindow",
             "text": "Focused Window",