Update VS Code ignores to match file in global

Updated the VS Code section of VisualStudio.gitignore to match the Global/VisualStudioCode.gitignore file.

Author: Bdeering1

VisualStudio.gitignore

@@ -382,11 +382,14 @@ FodyWeavers.xsd
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
-*.code-workspace
+!.vscode/*.code-snippets
 
 # Local History for Visual Studio Code
 .history/
 
+# Built Visual Studio Code Extensions
+*.vsix
+
 # Windows Installer files from build outputs
 *.cab
 *.msi