fix: defer board+port state update for extensions #2233
                
     Merged
            
            
          
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Motivation
To fix a race condition when setting the Arduin state for extensions at app startup. If the board+port state is set before it's read from the
localStorage, clients will get anundefinedfqbn.Change description
Defer updating the board+port state for extensions when it's ready.
Other information
Ref: #2165
Ref: dankeboy36/esp-exception-decoder#10
Steps to reproduce:
ESP Exception Decoder: Show Decoder Terminalcommand,No board selectederror message.Reviewer checklist