Global binding for opening transaction from file, refactors in transaction summary

Mateusz Kudelarequested to merge
mkudela/refactor_transaction_summary into develop

Requires:

Closes: #337 (closed), #418 (closed)

This MR also fixes:

  • handle of refresh metadata binding when node is changes its status
  • loosing focus of refresh metadata button after pressing it
Edited by Mateusz Żebrak

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