Kiwix-android: Refactor Rxjava to coroutines in FileSearching

[gouri-panda]

Is your feature request related to a problem? Please describe.
Currently, we are using Rxjava for file searching. It would be great if we convert Rxjava to coroutines.

Describe the solution you'd like
Replace all the Rxjava methods with coroutines.
Parent issue

2445

[kelson42]

@macgills Can you please validate the idea? Why should we do that?

[macgills]

I have approved it in the parent issue, coroutines are faster, easier to work with and more easily interruptible, stopping wasted cycles.

[s-ayush2903]

I would like to work on this issue

[gouri-panda]

@s-ayush2903 sorry, I am already start working on this.

[s-ayush2903]

Ah, fine then. But if we have any new issue on coroutines, I would like to work on it, I wanna learn implementing 'em efficiently

[gouri-panda]

@s-ayush2903 I don't think we have any new issue on coroutines. But if you like you can create new issues. Perhaps @macgills can help you with that.

[s-ayush2903]

A big thanks for your help! I'll create issues regarding the same after consulting the seniors and you, thanks again!

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be now be reviewed manually. Thank you for your contributions.