Run the uninstaller with administrator privileges #16505

NVDA cannot be uninstalled correctly by directly running "%ProgramFiles(x86)%\NVDA\uninstall.exe". You must run it as an administrator to uninstall it correctly.

Description of user facing changes
You can directly run "%ProgramFiles(x86)%\NVDA\uninstall.exe" to uninstall NVDA

Description of development approach
Change RequestExecutionLevel to admin

uninstaller/uninst.nsi

@@ -9,7 +9,7 @@ SetCompressor /SOLID LZMA
 CRCCheck On
 XPStyle on
 InstProgressFlags Smooth
-RequestExecutionLevel user
+RequestExecutionLevel admin
 
 Name "${appName}"
 VIProductVersion "${VERSION_YEAR}.${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_BUILD}" ;Needs to be here so other version info shows up