Checklist (Your issue will be automatically closed if you delete this part)

• I make sure that there are no existing issues - open or closed - which I could contribute my information to.

Description

Currently, subscriptions in PipePipe do not always display newly available videos. To address this, I propose adding the ability for users to manually refresh their subscriptions either within individual subscriptions or globally. This could be implemented via a common gesture, such as a pull-down-to-refresh action, or as a dedicated refresh button.