Test basic accessibility

We discussed in last meeting that we need to know the current A11N state to get a better view on how much we can fix in how little time that is left.

A round (or 2) on testing accessibility.

• Built-in tools like text-to-speech (TalkBack)
• Built-in tools like high contrast
• Navigating around
• Missing labels
• Taskbar
• small touch targets

Open questions:

• do a round before the feedback from @sajolida and another round after changes (donuts updating navigation for example)
• more thorough updating and testing (espresso for example)
• how much time can we spend on this, how much has to be fixed for the MVP