DRAFT Check for existing history entry before sending history entries.

[UweTrottmann]

#839

If history entries are added based on user actions (e.g. this does not affect the initial data merge when syncing with Trakt), check the history API if an entry already exists at the watchedAt timestamp to be used. This is only a single API call and is expected to have a small, in most cases probably empty, response so overhead should be minimal.

• Test
• Update docs

[github-actions[bot]]

Unit Test Results

27 tests  ±0   27 :heavy_check_mark: ±0   9s :stopwatch: ±0s 12 suites ±0     0 :zzz: ±0  12 files   ±0     0 :x: ±0 

Results for commit a95b3078. ± Comparison against base commit d8b6f632.

:recycle: This comment has been updated with latest results.