Fixed: Content labeling issue reported by the playstore.

[MohitMaliFtechiz]

Fixes #3700
Child Issue #3680

• Added content descriptions for all views reported by the Play Store, including RecyclerView, dialog's itemView, pause/resume/stop buttons, and many more.
• Created an extension function to handle both setting the content description to address Play Store accessibility issues and displaying hints to the user using ToolTipText. This function consolidates these tasks in one place, eliminating code duplication.
• Added a few new contentDescription for views, which are shown in the below images, if you have any better suggestions for these contentDescripton, it would be welcome.

• For the below change we do not have any direct function to get the navigationIcon from toolbar. So we make a helper function to get that view. Please read the code comments as this change has some conditions after closing some screens. For example, we previously changed this icon/contentDescription to the "+" button when opening the tabSwitcher. After closing the tabSwitcher, we reset the contentDescription to the default hamburger icon. To properly understand all the changes we have added appropriate comments on methods.

Back button descripton	Back button descripton	Back button descripton	Back button descripton	Back button description

• For the ActionMode back button, there is no way I found yet to get the view so the description is not set for that (Might be that's why Play Store does not report for this view.). ActionMode activates, when you select one or more things(Zim files, history, etc) to delete. If you have any suggestions it would be welcome.
• When SearchView is activated then it overrides the default behavior of navigationBackButton means it removes the contentDecripton from the navigationBackButton so it does not show when the searchView is activated but after searchView is closed it starts working normally. You can see this behavior in the Bookmarks screen, just a long click on the backButton when initially launching the screen you will see the description, after that click on the search icon and again try to long click on the back button you will not see the description. SearchView does not have its own backButton it internally overrides the behaviour of navigationBackButton.

[codecov]

Codecov Report

Attention: 14 lines in your changes are missing coverage. Please review.

Comparison is base (da897a1) 51.64% compared to head (b96ad45) 51.20%.
Report is 1 commits behind head on main.

❗ Current head b96ad45 differs from pull request most recent head 046f10f. Consider uploading reports for the commit 046f10f to get more accurate results

Files	Patch %	Lines
...ile/localFileTransfer/LocalFileTransferFragment.kt	61.53%	1 Missing and 4 partials ⚠️
...mhutti1/utils/storage/adapter/StorageViewHolder.kt	71.42%	2 Missing ⚠️
.../kiwix/kiwixmobile/core/main/CoreReaderFragment.kt	60.00%	0 Missing and 2 partials ⚠️
...va/org/kiwix/kiwixmobile/core/page/PageFragment.kt	66.66%	0 Missing and 2 partials ⚠️
...org/kiwix/kiwixmobile/language/LanguageFragment.kt	75.00%	0 Missing and 1 partial ⚠️
...va/org/kiwix/kiwixmobile/core/base/BaseFragment.kt	50.00%	0 Missing and 1 partial ⚠️
...rg/kiwix/kiwixmobile/core/main/CoreMainActivity.kt	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3707      +/-   ##
============================================
- Coverage     51.64%   51.20%   -0.44%     
+ Complexity     1237     1208      -29     
============================================
  Files           288      289       +1     
  Lines         10876    10912      +36     
  Branches       1459     1465       +6     
============================================
- Hits           5617     5588      -29     
- Misses         4303     4366      +63     
- Partials        956      958       +2     

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[kelson42]

No review, but we have to merge