Fixed: When devices went to sleep mode, the search filter was reset of the online library.

[MohitMaliFtechiz]

Fixes #4205

• Preserved search query across lifecycle changes to restore it when the fragment becomes visible again.
• Previously, when the device went to sleep, viewLifecycleOwner closed the search view due to lifecycle events, resetting the search.
• Now, the query is stored in ViewModel (which is lifecycle-aware) and restored when the online library screen is reopened.
• Search is reset only when the user explicitly clears it.
• Added OnlineLibraryFragmentTest instrumentation (UI) test case to test this new functionality.

screen-20250211-155956.mp4

[codecov]

Codecov Report

Attention: Patch coverage is 85.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 57.61%. Comparing base (a88884a) to head (cd67d40).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...e/nav/destination/library/OnlineLibraryFragment.kt	84.21%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4220      +/-   ##
============================================
+ Coverage     57.18%   57.61%   +0.43%     
- Complexity     1584     1590       +6     
============================================
  Files           316      316              
  Lines         13746    13765      +19     
  Branches       1722     1726       +4     
============================================
+ Hits           7860     7931      +71     
+ Misses         4692     4648      -44     
+ Partials       1194     1186       -8     

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