Is your feature request related to a problem? Please describe.

Users may want to be notified when new add-ons are available from the store.

Describe the solution you'd like

• A New add-ons tab maybe added to the store, where last compatible add-ons not cached would be presented.
• A dialog or other means, like an ui.message or a toast notification, would notify users when new add-ons are available, for example at startup or at scheduled intervals (each hour may be reasonable.
• The dialog will be the store focusing the New add-ons tab, where the description and other details, an an action to install add-ons, would be available.

Describe alternatives you've considered

An add-on maybe created to notify about new add-ons, but it maybe better to include this in the core adding a new tab to the store.

Additional context

A bot used on Mastodon, on a Feeds subgroup of the add-ons mailing list and on a spanish mailing list is used by some people to be notified about new add-ons:

• Bot repo
• Bot profile on Mastodon