Clean options page

[devmount]

Is your feature request related to a problem? Please describe.
The add-on options page currently holds 3 types of options:

1. Options that are immediately applied without any further action needed
2. Options that require a stats page reload
3. Options that require a cache rebuild

Describe the solution you'd like
I'd like to simplify this by only providing options of the first type. This would eliminate the corresponding symbols and explanation for types 2 and 3 and make the options page much cleaner.

• Implement a mechanism that automatically reloads an open stats page if options of type 2 are changed
• Implement a mechanism that automatically reprocesses stats if options of type 3 are changed

Describe alternatives you've considered
The symbols can also be kept for explanation, but those might just confuse the user who just wants it to work without the need to know how exactly.

Additional context
Screenshot of the current explanation: