Add Podman instructions

[Zorlin]

Description

Adds instructions for running Overseerr under Podman.

To-Dos

• [N/A] Successful build yarn build
• [N/A] Translation keys yarn i18n:extract
• [N/A] Database migration (if required)

Issues Fixed or Closed

None

[sct]

You will need to format the markdown with prettier for this to pass the CI tests. Check out our Contribution Guide.

[stale[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.