Time-consuming tasks should display loading states

[D-Inventor]

Is your feature request related to a problem? Please describe.
I cannot see if the URL Tracker is working on something or not. I get no feedback if something went wrong or if the URL Tracker is just busy.

Describe the solution you'd like
Whenever you perform an action that results in communication with the backend, you should see a loading animation to indicate that the URL Tracker is working on your request. This applies to:

• Creating or updating redirects
• Performing bulk operations on redirects and on recommendations
• Deleting redirects
• Ignoring recommendations
• Exporting redirects
• Importing redirects

Most of these actions are triggered by clicking uui-buttons, so we should leverage the loading and success states of those.
The ignore recommendation button is custom, this either needs to be converted to a uui-button that looks the same or needs to be changed to accommodate a similar style loading state.
The import box could maybe use the loading bar.

Describe alternatives you've considered
not applicable

Additional context
This feature applies throughout the whole UI.