[Enhancement]: Add missing strings for translation

[thehijacker]

Type of Enhancement

Web Interface/Frontend

Describe the Feature/Enhancement

Found some more parts that strings are not translated:

Podcasts under latest or listen again rail (Episode string is not translated):

Under user properties. "API Token" string:

Under settings. "24-hour" strings:

Under listening sessions (hr, Open Listening Sessions, Page X of X):

Backup cron settings (Run every...):

Went over everything twice more. I think I have it all now, but there might still be parts in UI I have not yet discovered.

Why would this be helpful?

Would be nice to have every part of the UI translatable.

Future Implementation (Screenshot)

Translated strings instead of English hardcoded.

Audiobookshelf Server Version

2.15.1

Current Implementation (Screenshot)

No response