Add the option to change the UI Theme at runtime (#2693)

* Setup for testing

* Working Example for Background

* Almost all MainBackgrounColor working

* Random Color PoC

* Fix DBorderColor

* prevent old logic from replacing colors in memory at startup

* Comment out resources in xaml

* Finish new Button

* Remove Pulse, Load Windows default Theme

* Fix Colors

* Fix Toggle Colors

* working version, with shared still being mostly applied be replace instead of resouces

* Load all entries in themes.json as Resource and reference them in inputXML.xaml

* Rename File to match Function Name

* Hotfix for Sync with main

* Remove Static Set-WinUtilUITheme function/file

* Rename File and Function

* Cleanup and Stuff

* Unify Button Theme with rest of UI

* Refactor/Optimazation

* Performance optimization

* Add Comments

* Rename Functions and Variables to be more concise and descriptive

* Add persistence to the user Theme Preference across winutil restarts

* Reimplement Theme Chagnes from #2722

* Add AUTO option to follow window theme and add dropdown instead toggle

* Formatting and deleting temp file

* Fix small display bug where Dropdown would remain open for settings and themes

* Remove terniary operators because only PS7+ is supported

functions/public/Invoke-WPFButton.ps1

@@ -19,7 +19,6 @@ function Invoke-WPFButton {
     }
 
     Switch -Wildcard ($Button) {
-
         "WPFTab?BT" {Invoke-WPFTab $Button}
         "WPFInstall" {Invoke-WPFInstall}
         "WPFUninstall" {Invoke-WPFUnInstall}