settings page - user can download different language support, able to detect indian language text using mlkit in images & PDF

[ndubbaka]

• like https://play.google.com/store/apps/details?id=novumlogic.mlkit where you can download language model in mlkit
• option to delete accidentally downloaded model to save space
• hid unnecessary 2 dialogs after opening image/PDF

[suyash-modi]

can i take this task