[Feature request]: Ability to save/favorite commonly used segments's timecodes per channel

[vzjrz]

It would make submitting new segment way easier if you there was a way to save commonly used timecodes per channel. Some channels reuse the same introductions and sponsor segments. These are exactly the same lengths every time. If SponsorBlock is able to recall these lengths then the user could simply find the start of the segment then simply choose the appropriate saved time to automatically calculate the end time.

Possible workflow:

1. User goes to Video1 for ChannelA
2. User finds and submits a Introduction Segment, ex: 0:00.000-0:08.639
3. User chooses to save this timecode and gives it a name 'Start Intro'
4. When watching another video from the same ChannelA, SponsorBlock could allow the user to auto recall the 'First Intro' timecodes
5. The user then verifies that the timecodes are correct and can submit it.
6. Or, maybe the intro moved to a different part of the video and now starts at 0:15.000
7. The user finds the start of the intro and marks the beginning.
8. SponsorBlock now allows the user to recall the 'Start Intro' timecodes and the end timecode is automatically calculated as 0:23.639
9. The user verifies the segment is correct and submits it.