Fix and standardize map filenames and <name> tags & remove broken maps

[joshuafuller]

This PR updates all map XML files to a consistent naming scheme, both in filenames and within the tag fields.

Changes:

• Renamed all map XML files to follow a consistent provider_mapname.xml pattern.
• Unified directory and file naming (lowercase, underscores, and removal of special characters).
• Updated the tags inside each XML file to use a standard Provider - Map Name format.
• Removed broken XML map files that were previously non-functional.