[MOB-658] Fixed loading visible when nothing was loading. included share backup mimetype

[carvalho2707]

What does this PR do?

This PR fixes an issue with loading indicator showing when nothing was being loaded. Also it was included the fix for the share backup mime type

Database changed?

No

Where should the reviewer start?

• [ ] TopUpFragment.kt
• [ ] TopUpFragmentPresenter.kt
• [ ] TopUpFragmentView.kt

How should this be manually tested?

Flow on how to test this or QA Tickets related to this use-case: MOB-658

What are the relevant tickets?

Tickets related to this pull-request: MOB-658

Questions:

Does this add new dependencies which need to be added? (Eg. new libs, new keys, etc.)

Code Review Checklist

• [ ] Architecture
• [ ] Documentation on public interfaces
• [ ] Database changed?
• [ ] If yes - Database migration?
• [ ] Remove comments & unused code & forgotten testing Logs
• [ ] Codestyle
• [ ] Functional QA tests pass