Fix Get Installed toggle detection and multiple config bugs (#3959)

Fixes the issue where "Get Installed" in the Tweaks tab was not correctly
pulling all toggle states, plus several additional config bugs discovered
during investigation.

Changes:
- Unified toggle detection logic using Get-WinUtilToggleStatus
- Fixed registry value detection (0 values were incorrectly treated as missing)
- Added DefaultState support for missing registry keys
- Fixed WPFTweaksUTC registry type (QWord → DWord)
- Fixed WPFTweaksServices startup types (TermService, VaultSvc: Automatic → Manual)
- Fixed duplicate order collisions in tweaks
- Fixed FFmpeg display name
- Improved OneDrive removal script reliability
- Improved Copilot removal script with wildcard pattern and null check
- Fixed code formatting (added spaces after if/Foreach statements)

Files changed:
- functions/private/Invoke-WinUtilCurrentSystem.ps1
- functions/private/Get-WinUtilToggleStatus.ps1
- config/tweaks.json
- config/applications.json

Fixes #3762
Fixes #3189
Fixes #3876
Potentially fixes #3008
Potentially fixes #3815

config/applications.json

@@ -555,7 +555,7 @@
     "ffmpeg": {
         "category": "Utilities",
         "choco": "na",
-        "content": "eibol.FFmpegBatchAVConverter",
+        "content": "FFmpeg Batch AV Converter",
         "description": "FFmpeg Batch AV Converter is a universal audio and video encoder, that allows to use the full potential of ffmpeg command line with a few mouse clicks in a convenient GUI with drag and drop, progress information.",
         "link": "https://ffmpeg-batch.sourceforge.io/",
         "winget": "eibol.FFmpegBatchAVConverter"