Pre-Release 5.9.0-rc1

This release contains the removal of the EDDB module, as well as a few under-the-hood
updates.

• Removes the EDDB plugin due to EDDB shutting down.
• Unsets EDDB as the default handler for certain URL preferences.
• Updates the FDevIDs to latest versions.
• Removes EDDB references from help string documentations.
• Updated a number of dependencies to their latest working versions