LDEV-5397 bug fixes* Image gallery. Prevent alert saying "Internal server error" on trying to add empty image as a learner* Mindmap. Fix padding around color picker
LDEV-5423 Complete Flux on all subscriptions terminatedAlso:* use separate and configurable task executor for async requests* introduce backlog pressure strategy for Fluxes* synchronise access to Flux mapping* add logs
LDEV-5422 Fix exception os Whiteboard re-edit at Gallery WalkIf the teacher was also a learner he got 2 users in a Whiteboard instance. Sometimes for displaying Gallery Walk the teacher user was picked instead of learner which resulted in missing session reference and the exception.
LDEV-5397 import bootstrap5.scss into components.scss* Subsequently import components.scss into components-learner.scss* It will allow using bootstrap5 CSS rules in components CSS classes