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

- Link Kwrite config with Kate

common/.config/kate/externaltools/XML%20Format%20Full%20File.ini

@@ -0,0 +1,13 @@
+[General]
+actionName=externaltool_XMLFormatFullFile
+arguments=--format "%{Document:FileName}"
+category=Tools
+cmdname=xml-format-file
+executable=xmllint
+icon=application-xml
+name=XML Format Full File
+output=ReplaceCurrentDocument
+reload=false
+save=CurrentDocument
+trigger=None
+workingDir=%{Document:Path}