`this.$t` is undefined when switching view

[GeckoEidechse]

To reproduce

1. Go to dev view
2. Start installing a Northstar release
   
3. Before it finishes, go to PlayView
4. Wait
5. Error message should pop up when installation is done

Might also affect other view switches, not yet tested.

[GeckoEidechse]

Found by @barnabwhy via https://discord.com/channels/920776187884732556/936105663942246410/1273625510588715040

[barnabwhy]

I also mentioned in our discussion on Discord that it might be worth considering switching some/all vue files to the composition api to help avoid issues like this since less stuff would depend on component this objects