Aa-srp

Fixed

- `exception=IndexError('list index out of range')` for Discord notifications on new
SRP request

Added

- Copy to clipboard for the SRP link in SRP dashboard view
- Copy to clipboard for pilot name in SRP link view

Changed

- Notification functions moved to its own module to avoid code duplications

Fixed

- SRP cost info bar removed from user settings tab

Added

- Option for users to disable notifications for this module. When enabled, no
notifications will be sent at all. Neither in AA itself nor on Discord (if any of
the Discord apps is active)
- Check if [AA Discord Notify] is installed, which picks up on notifications in Auth
and relays them to the respective user as Discord PM. This way, we don't send
double notifications to the user if [AA-Discordbot] is installed as well.

Changed

- Enabled paging for SRP link table on dashboard in "View All" mode

Added

- Option to notify the SRP team in their Discord channels about new SRP requests. (You
need to have [AA-Discordbot] installed and configured to use this option)