fix(admin-ui): add `All` option to script type filter

**Summary**:

- The "Script Type" dropdown needs an "All" option so users can easily view all scripts at once, without having to clear the filter.

Steps to Reproduce:

1. Go to the "Scripts" page.
2. Click on the "Person Authentication" dropdown menu to view the list of script types.
3. Observe the available options. There is no single option to show all scripts.

Expected Outcome:

The dropdown list should include an "All" option at the very top. When a user selects this option, the table below should display every custom script in the system. This "All" option should also be the default selection when the user first visits the page.