We need to upgrade Vue and Quasar

[falkoschindler]

As already discussed in #460, JustPy serves Quasar 1.9.14, which can not easily be upgraded to 2.x, because JustPy depends on the older Vue 2 and Quasar 2 needs Vue 3. Vue 3, however, is not compatible with Vue 2, so we would need to rewrite parts of JustPy.

I just checked the end-of-life dates:

• Vue 2: end of 2023 (active support already ended)
• Vue 3: ?
• Vue 4: ?
• Quasar 1.x: end of 2022
• Quasar 2.x: end of March 2023

In my point of view, we definitely need a roadmap on how to migrate to more recent versions of Vue (and Quasar, and other dependencies). Therefore we need to isolate JustPy's transport layer: What does it take to remotely control a JavaScript/Vue/Quasar app from Python? This is what needs to get updated every now and then when we need to make a major upgrade. Everything else, the Python objects like Div, QDiv, their attributes, events and props, ... - that's a different part of JustPy which should be rather stable and independent.

[WolfgangFahl]

Definitely so that's why i made #479 an issue now. The startup code needs to be way cleaner to make anything of this happen.

The https://en.wikipedia.org/wiki/Big_ball_of_mud approach needs clean up.

[NormanShelley]

#479 is completed. What are the next steps in the migration roadmap to more recent versions of Vue and Quasar?

[WolfgangFahl]

@NormanShelley - the main step is trying out things. As https://nicegui.io/ is already using never versions we might want to catch up since zauberzeug/nicegui#168 is closed and therefore the nicegui approach is already deviating from the justpy core and nicegui is cathing way more stars (3.6 k at this time) then the original justpy does (we haven't even hit the 1k boundary yet) so there is also a lot more development going on in that project than here.