chore(docs): access Immich using meshnet nordvpn

[RoseyWasTaken]

Description

Added an additional card linking to a remote access guide.

Guide is available here - https://meshnet.nordvpn.com/how-to/remote-files-media-access/immich-remote-access

Related to - #16315

How Has This Been Tested?

N/A

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation if applicable
• I have no unrelated changes in the PR.
• I have confirmed that any new dependencies are strictly necessary.
• I have written tests for new code (if applicable)
• I have followed naming conventions/patterns in the surrounding code
• All code in src/services uses repositories implementations for database calls, filesystem operations, etc.
• All code in src/repositories/ is pretty basic/simple and does not have any immich specific logic (that belongs in src/services)

[RoseyWasTaken]

Thank you for fixing the URL!