Convert userprefs to a json file instead of header file which has to be included everywhere (#5471)

* WIP

* Got string quoting and macro expansion working

* Need the placeholder

* Cleanup

* Missed a user prefs reference

* Update jsonc

bin/build-userprefs-json.py

@@ -24,7 +24,7 @@ def write_macros_to_json(macros, output_file):
 
 def main():
     header_file = 'userPrefs.h'
-    output_file = 'userPrefs.json'
+    output_file = 'userPrefs.jsonc'
     # Uncomment all macros in the header file
     with open(header_file, 'r') as file:
         lines = file.readlines()