Tmdb api

[tomasalias]

This pull request introduces significant enhancements to the Stremio Hellspy.to addon by integrating TMDb metadata support, improving search functionality with additional patterns and variations, and cleaning up the codebase. The changes aim to provide a richer user experience with better metadata and more accurate search results.

Metadata Enhancements:

• Integrated TMDb API to fetch enhanced metadata, including titles, overviews, posters, and backdrops. Added fallback to Wikidata when TMDb is unavailable. (addon.js, README.md) [1] [2] [3]
• Updated the addon description and version to reflect the new TMDb support. (addon.js)

Search Improvements:

• Added support for anime-specific and flexible episode naming patterns, including Japanese formats and common variations like "Title - XX" and "第X話". (addon.js) [1] [2] [3]
• Enhanced search logic to include alternative titles from TMDb or Wikidata and additional queries using anime name variations. (addon.js) [1] [2]

Codebase Enhancements:

• Introduced utility functions for handling title variations and improved modularity by importing reusable title utilities. (addon.js)
• Removed redundant comments and streamlined code for better readability and maintainability. (addon.js) [1] [2] [3] [4] [5]