[draft] Try Vue3 compat mode

[pascalwengerter]

Description

Just spent an hour hacking on this with @fschade, we got it to build successfully but didn't manage to get the Vue instance to accept the (new) translations plugin. Saving this as WIP so anyone can try and continue

Related Issue

• Targets research: try out VUE3 compat release #5268

Motivation and Context

See issue

Types of changes

• Technical debt

Open tasks:

• Update the way Vue + vuex are initialized
• Fix all deprecation warnings
• Update dependencies, remove dependencies

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[dschmidt]

Why did you remove livereload?

If you remove it here for a reason, then the imports and references in package.json and yarn.lock should be removed as well.

[pascalwengerter]

Hey, thanks for the hint and yes technically you're right. This is/was a draft PR and something about livereload broke the build process (and we didn't bother investigating there since it was a hacky "let's see how far we get" anyways)

Will get fixed in the cleanup if/once we continue with this PR ;)

[pascalwengerter]

Please nobody put any effort into this before #5752 has been merged - I'll rebase it then and we can continue working on it with a way better setup

[pascalwengerter]

Please nobody put any effort into this before #5752 has been merged - I'll rebase it then and we can continue working on it with a way better setup

Rebased this branch, doesn't build anymore with what I expect to be a postcss error. @fschade can you maybe take a look?

[pascalwengerter]

I'll close this as obsolete, it is linked in the relevant Vue3-update-issues but most likely will be superseded by a new PR - looking forward!