Pioneer upgrade: Set up a "skeleton" that works with Substrate 2.0

[Lezek123]

This step will highly depend on the results of #1033, which is partially a research issue, so it means either:

• Resolving conflicts after pulling from upstream or
• Adjusting apps and configuration of the new polkadot-js/apps fork to more-or-less match the old Pioneer's "skeleton", then introducing joy- apps there (initially disabled) and merging everything back into monorepo (which will then probably cause the need for additional adjustments) or
• Updating dependencies and introducing adjustments to the existing apps without pulling from upstream if that turns out plausible or
• Some other solution that may turn out to be better

The goal is to basically setup a Pioneer-like application with all existing joy- apps there, but temporarily disabled. This "skeleton" should work with Substrate v2.0 node (and polkadot-js ^1.25.1) and exist within the monorepo with preserved history. It should build and pass some basic CI checks, which means that joy- apps should also be temporarily excluded from those.

I suspect this may take well over 12h, so I'm putting estimate-40h label for possible future decomposition once the strategy of approaching this becomes more clear (possibly after #1033).

This may be an overestimation, but probably closer to reality than estimate-12h

[Lezek123]

Split into #1130 and #1131