Add option to hide results not found in library

[mrplow]

This PR adds a new user setting to hide movies that are not found in the Kodi library.
When enabled, the addon only displays movies present in the library, helping users filter out unavailable content.

[mrplow]

Summary:

This update adds a new user setting “Hide movies not in library” that lets users filter out movies not present in their Kodi library. It also bumps the addon version to 0.1.13 and updates the addon.xml news.

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Description:

Feature:

• New boolean setting “Hide movies not in library” in Settings → Options → Library.

• When enabled, the addon skips any movie that is not found in the local Kodi library when displaying lists.

• Helps users focus only on movies they already have locally.

Changes Made:

1. main.py

   • Reads the new setting once per movie list.

   • Checks tmdb_index to see if the movie exists locally.

   • Skips movies not in library if the setting is enabled.

2. resources/settings.xml & strings.po

   • Added the new toggle setting with proper labels and translations.

3. addon.xml

   • Bumped version to 0.1.13.

   • Added news entry:

     0.1.13 add option to hide movies not found in local library
     

Behavior:

Setting	Movies Shown in Addon
Hide movies not in library = Off	All movies
Hide movies not in library = On	Only movies in library

Notes:

• Uses tmdb_index to detect movies in the library.

• Future improvement: could extend to TV shows or episodes.

• Filtering is optional and controlled by the user, so performance impact is minimal.