Fixed: Sometimes not all Bookmarks are showing.

[MohitMaliFtechiz]

Fixes #3889

• We have implemented setHasStableIds(true) in our RecyclerView, which handles data updates efficiently and enhances view recycling. It also provides smooth animations when data is refreshed. However, it requires unique IDs to perform these operations effectively. Since our bookmarks are stored in libkiwix and do not have unique IDs (database IDs), this sometimes results in duplicate data being displayed in the list instead of the actual data, as the lack of unique IDs causes the same data to be repeated when recycling non-visible items.
• To fix this, we have explicitly provided unique IDs by combining a UUID with the maximum value of a long. This ensures that RecyclerView can efficiently handle large data sets.
• Added instrumentation test case to avoid this type of error in the future.
• Fixed DownloadTest, initialDownload. The Library order and zim file name is changed so these test cases are failing so we have implemented a generic approach to not dependent on zim file name.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.60%. Comparing base (4a6fecd) to head (f209aa6).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3893      +/-   ##
============================================
+ Coverage     53.53%   53.60%   +0.06%     
- Complexity     1396     1401       +5     
============================================
  Files           302      302              
  Lines         11588    11588              
  Branches       1527     1527              
============================================
+ Hits           6204     6212       +8     
+ Misses         4383     4375       -8     
  Partials       1001     1001              

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