* feat(front): add a confirmation modal to discard unsaved changes
* feat(front):Fix modal content
* feat(front): Revert code + add unsavedconfirmatiomodal to the flow builder
* feat(front): Use a store to store whether the content of an editor needs to be saved before leaving
* feat(front): Add cleanup + only display the warning when navigating elsewhere on the app
* feat(front): set dirty to false when saving
* feat(front): add keyboard binding to cancel or resume
* feat(front): Init dirtyStore to true when creating a flow/script
* feat(front): Explicit store initiliation
* feat(front): initilisation dirty status after loading a script/flow