[FIX] composer: Enter/Tab confirm when assistant is force-closed #7382
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Description:
When the formula assistant was force-closed, Enter/Tab were swallowed and no action occurred. Users could not confirm edits (including plain text).
Composer now tells the store when the assistant is force-closed. Enter/Tab confirm the edit if the assistant is open; otherwise, they stop the edition.
Task: 5153666
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