Cleanup #1

I cleaned it all up a bit:

Removed the tests, as they are from the example app
Renamed everything from fluttering_vikunja to vikunja_app
Cleaned up the gitignore file, it had a lot of duplicated stuff + stuff we don't use
Updated the readme with Badges and a better title
Added a makefile for tests and building the app

I cleaned it all up a bit: * Removed the tests, as they are from the example app * Renamed everything from `fluttering_vikunja` to `vikunja_app` * Cleaned up the gitignore file, it had a lot of duplicated stuff + stuff we don't use * Updated the readme with Badges and a better title * Added a makefile for tests and building the app

@konrad Please revert your changes at .gitignore since they apply to the default gitignore of flutter.

@konrad Please revert your changes at `.gitignore` since they apply to the default `gitignore` of flutter.

No, its not: https://github.com/flutter/flutter/blob/master/packages/flutter_tools/templates/create/.gitignore.tmpl

I could update it to match the one from flutter. The old one was way to cluttered.

@konrad please do this

@JonasFranz done.

👍

:+1:

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Cleanup #1