Repo Cleanup (#2367)

* remove trailing whitespaces, remove unused img folder

* Rename TweaksScreen.PNG to TweaksScreen.png

* restructure "Install-WinUtilProgramWinget"

* undo programwinget function rework

* fix typo

mkdocs.yml

@@ -29,15 +29,15 @@ theme:
     - media: "(prefers-color-scheme: light)"
       scheme: default
       toggle:
-        icon: material/toggle-switch-off-outline 
+        icon: material/toggle-switch-off-outline
         name: Switch to dark mode
       primary: black
-      accent: purple 
+      accent: purple
     - media: "(prefers-color-scheme: dark)"
-      scheme: slate 
+      scheme: slate
       toggle:
         icon: material/toggle-switch
-        name: Switch to light mode    
+        name: Switch to light mode
       primary: teal
       accent: lime
   markdown_extensions: