Enforce Vuetify ESLint rules.

[fschmenger]

As proposed within #312, we should consider installing the plugin eslint-plugin-vuetify to have access to the Vuetify ESLint rules. This should help us in maintaining vuetify code and prevent us from using outdated components, properties etc.

[sronveaux]

Hi @fschmenger,

Indeed I was planning to work on this but waited for the Wegue V2 branch to become a reality as all the PRs I've written until now are unfortunately not independent but cumulative. V2 was branched from master, then V3 was branched from V2, V4 from V3 and eventually V5 from V4.

The eslint-plugin-vuetify require ESLint7 or ESLint8 and support of ESLint7 was only added in Vue-CLI V5. It means working on it now would add a new level of dependency. So I'd like to tackle this once we have a branch including Vue-CLI V5.

I'd propose to do two or three linked things here:

1. Include the official Vuetify plugin for Vue-CLI
2. Include and enforce the Vuetify ESLint rules
3. Update ESLint from V7 to V8

The last point can be done separately but should be useful to get up-to-date on this subject.
ESLint8 was not compatible with Vue-CLI V4 but works well with Vue-CLI V5 so I definitely have to give it a try!

[fschmenger]

OK, thank you for pointing out the implications! I fully agree that we should put it on hold until #314 is finalized, as this will possibly result in a bunch of code formatting changes again. Again this isn`t urgent, so take your time!

[sronveaux]

Hi @fschmenger,

This was addressed by #348 and #355.
Except if you think of something else, this one can be closed...

[fschmenger]

Hi Sebastien, thanks a lot for implementing this and thanks to Christian as well for testing.
Sorry for being so quiet lately as Im still very limited on time. Anyway Im closing this issue for now.
Cheers Felix