Let user enable or disable edrive synchronization on metered network

Description

Add a new option for eDrive in /e/ account setting: allow user to enable or disabled usage of metered connection.

eDrive part is available at: eDrive!110 (merged)

Issue(s)

https://gitlab.e.foundation/e/os/backlog/-/issues/123

Check list

• Self review
• Self test
• License
• Code review