Added translation, and the downloaded option

[sandy4242]

added the downloaded option inside the filter option... and completed the translation

[amugofjava]

Hi @sandy4242,

This change is nearly there, but it's currently not working. Have you pushed an old commit in error as the errors we reviewed before are still there? How are you testing your commits before pushing them? Do you have a physical device to test on, an emulator or a mixture of both? Thank you.

[sandy4242]

@amugofjava let me do one thing redo the whole process once again and open a new pr... like fork again, from the start, and for testing i use my physical device...and i was not facing any application errors while testing before the downloaded podcasts were fetched after clicking the downloaded button...but i think i should redo the whole process.... thank you