Allow users to freely set the probe location

[jimaek]

We need a new flow, I prefer to do it as a wizard with multiple steps instead of a simple dropdown

0. We set the location automatically as always
1. We replace the dropdown with a button "Change location" which opens a wizard modal
2. We check if the user has been registered for more than 90 days or has donated and if not then disable the button with a clear tooltip explaining everything
3. If the check passes we enable the button. First screen of the wizard is the map with input for country and city.
4. Next step we show a table similar to our tool https://geodebug.globalping.dev/ with the user's choice and what the DBs report
5. We ask the user to tick a box "I confirm the selected location is correct and I understand my account will be blocked if I set fake locations on purpose"
6. After finish we close the modal and refresh the data show in the dashboard

#809

[MartinKolarik]

Unnecessary complicated and worse UX for 99% of cases, people who don't change the country or change it to one of the reported ones should have exactly the same flow as now.

For the verified users, we either list all countries (and ask for confirmation if it isn't in the groip list)or use the current "other" option to show that modal.

[jimaek]

I really dislike the current way of location setting. The new one is not perfect but it's at least clearer and offers a comparison to what is being reported