[Flaw-fix] Trigger backup creation only after the location has been chosen

[Palloxin]

Describe your suggested feature

As title says.

Currently the app starts to create the backup immediately after u click "create backup".

Other details

No response

Acknowledgements

• [x] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• [x] I have written a short but informative title.
• [x] If this is an issue with a source, I should be opening an issue in the sources repository.
• [x] I have updated the app to version 2.0.0.
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