PraDigi for School

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Fixed instructions Local-related issues for old Android Versions.
Changes made to data push processes.
Added New Checked Synced Data Section - users can now check student-wise sync details.
Improvements to app tour - option to restart tour is now provided.
Fixed OneUI specific issues.
Added Extra level for Course Enrollment in Science subject.
Displaying the resource size while downloading.
Fixes and optimizations related to RPi.
Added data (resource) download entry in Log table(INTERNET/RPi).