chore: Tidy gitignore

IDE-specifc ignores such as `.vs` and `.idea`, and system-specific ignores such as `Thumbs.db` and `.DS_Store` should be added to a global ignore file (`core.excludesFile`)

.gitignore

@@ -1,34 +1,2 @@
-# Common IntelliJ Platform excludes
-
-# User specific
-**/.idea/**/workspace.xml
-**/.idea/**/tasks.xml
-**/.idea/shelf/*
-**/.idea/dictionaries
-**/.idea/httpRequests/
-
-# Sensitive or high-churn files
-**/.idea/**/dataSources/
-**/.idea/**/dataSources.ids
-**/.idea/**/dataSources.xml
-**/.idea/**/dataSources.local.xml
-**/.idea/**/sqlDataSources.xml
-**/.idea/**/dynamic.xml
-
-# Rider
-# Rider auto-generates .iml files, and contentModel.xml
-**/.idea/**/*.iml
-**/.idea/**/contentModel.xml
-**/.idea/**/modules.xml
-
-*.suo
-*.user
-.vs/
 [Bb]in/
 [Oo]bj/
-_UpgradeReport_Files/
-[Pp]ackages/
-
-Thumbs.db
-Desktop.ini
-.DS_Store