chore: Move Linux-only configs out of "common" and into "linux"

linux/.config/kate/externaltools/Run%20Shell%20Script.ini

@@ -0,0 +1,13 @@
+[General]
+actionName=externaltool_RunShellScript
+arguments=-e sh -c "cd %{Document:Path} && pwd && chmod -vc a+x %{Document:FileName} && ./%{Document:FileName} ; echo Press enter to continue. && read null"
+category=Tools
+cmdname=run-script
+executable=konsole
+icon=system-run
+name=Run Shell Script
+output=Ignore
+reload=false
+save=CurrentDocument
+trigger=None
+workingDir=%{Document:Path}