fix: :bug: amm and revenue shares cannot be concurrent

[ignazio-bovo]

Goals

1. Amm cannot be activate when a revenue share is active
2. Revenue Share cannot be issued when Amm is active

Changes

• Added unit test for constraint 1
• Added unit test for constraint 2
• Added logic to the code to satisfy constraints above
• Added extra test to highlight that a token sale can still be issued during revenue share
• regenerate metadata and types

Notes

• No migrations needed to accommodate changes

[ignazio-bovo]

Update also the preconditions comment...

[mnaamani]

Update also the preconditions comment...

did you forget to push this change maybe?

[mnaamani]

This solution works but "it would force creators to open and close their AMMs frequently which is not a good idea" So replaced by https://github.com/Joystream/joystream/pull/5127