list_moly_fovs needs to ensure encoding method is 'utf-8'

[alex-l-kong]

Describe the bug

When the Moly points are being checked, they're being opened without a specified encoding method. This can cause encoding errors.

Expected behavior

The JSON should be loaded in correctly.

Explicitly pass an encoding argument like read_json_file.

[camisowers]

[camisowers]

In this instance the json files were damaged/encoded differently on the user's local computer. I ran the same json files on my computer and the user ran them on their own MIBI computer and extraction worked fine.

I think it's still a good idea to open each json file with a utf-8 encoding using the read_json_file regardless.