Fix: form submissions cause map re-render

[Andrew-Dickinson]

Capture admin form submissions in our nav framework, so that they do not cause a map re-render

Closes #267

[codecov[bot]]

Codecov Report

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

Project coverage is 92.78%. Comparing base (4b36549) to head (da10e93). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #486 +/- ## ======================================= Coverage 92.78% 92.78% ======================================= Files 69 69 Lines 2690 2690 ======================================= Hits 2496 2496 Misses 194 194 ```

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