fix(ProcessEditor): should re-render the diagram when local changes are deleted

[framitdavid]

Description

When deleting local changes, the diagram does not re-render which causes the diagram to display the wrong state. I fixed this by ensuring that React is re-rendering the diagram when bpmn diagram has changed.

Related Issue(s)

• PR itself

Verification

• [x] Your code builds clean without any errors or warnings
• [x] Manual testing done (required)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.06%. Comparing base (5524972) to head (1a95289).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #12911 +/- ## ======================================= Coverage 91.06% 91.06% ======================================= Files 1394 1394 Lines 19737 19737 Branches 2389 2389 ======================================= Hits 17974 17974 Misses 1501 1501 Partials 262 262 ```

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