chore(kate): Move kate back to "common" as it is cross-platform

- Link Kwrite config with Kate

common/.config/kate/externaltools/Clang%20Format%20Selected%20Text.ini

@@ -0,0 +1,13 @@
+[General]
+actionName=externaltool_ClangFormatSelectedText
+arguments=-assume-filename=%{Document:FileName}
+category=Tools
+cmdname=clang-format-selection
+executable=clang-format
+input=\s%{Document:Selection:Text}
+name=Clang Format Selected Text
+output=ReplaceSelectedText
+reload=false
+save=None
+trigger=None
+workingDir=%{Document:Path}