Visual regressions in the manageaccess widget:

- There is too much margin above the modal footer action buttons
- The list items, especially the roles dropdown, are not nicely vertically centred
- The `Change` button is quite small compared to the previous UI
- The `Add more` button is a bit smaller than in the previous UI and is also not perfectly centred vertically
- The list items are bold
- cfr creategroup for the visibility options
- There is not enough margin-left on the `Enter a name here` field when sharing
- There is too much space between `Add as ..` and the `Add` action button
- `Add these as` is not vertically centred with the dropdown
- When hitting Enter without selecting an item in the autosuggest, the page refreshes
- We should probably define a minimum width to avoid overlap when shrinking. We should also try to make the list items shrink more gracefully