Moved schema.json to fix warning due to location of the file

[heyrichard17]

In a default install via HACS, the schema.json file does not get installed in Home Assistant.

So custom_components/battery_notes/data/library.json shows a warning Unable to load schema from '/config/schema.json': ENOENT: no such file or directory, open '/config/schema.json'.

This fixes it by moving the schema.json file to the same directory as library.json.

Also, had to adjust a couple of workflow yml files to reflect this file move accordingly.

[andrew-codechimp]

I didn't notice this warning, thanks for the spot.
I will test this on a clone repo I have just for GH Actions as they can be awkward.
HACS persists the data directory to allow for user library's so I will maybe move this one level down to battery_notes so it's still in the custom component but can be updated via HACS.
I'll contribute to this PR once I have it tested then merge.

[andrew-codechimp]

I'll merge this in as part of the next release. A lot tidier thanks.