Fix json_cleaner

[cda94581]

A few changes to the json_cleaner.py file to ensure it works properly.
I noticed that #21 also exists to do something similar using Nim.

1. for file in glob.glob("**/*.json"): -> for file in glob.glob("**/*.json", recursive=True):
   • While debugging other areas of the file, I noticed the filter only targets top-level files, such as BP/manifest.json, RP/sounds.json, etc. Adding recursive=True finds all files in the subfolders as well.
2. json_data = get_json_from_file(fh) -> json_data = get_json_from_file(fh.read())
   • Added fh.read() to send a string as arguments, mainly to be used in the except section of the function.
3. json_data = json.load(fh) -> return json.loads(fh)
   • Using json.loads instead of json.load, because the argument is now a string instead of a file.
   • json_data variable declaration was unused, so that was removed.
   • If the try condition passes, without the return statement, the python object in which to convert to json is None or null. Hence, the files are written with null replacing everything. The return statement ensures a python object is returned.
4. for line in fh: -> for line in fh.splitlines():
   • Using .splitlines() splits the string into each line, allowing for the following lines to function.