Feature request: Add marks and YouTube integration

[PabloDinella]

Hello, first of all, thanks for the amazing work!

I would like to suggest two features:

1. Ability to add marks and export them as .txt in the same format of youtube "chapters", like:

00:00 Introduction
01:12 Hands on
06:00 Finishing

2. Maybe direct youtube upload.

I used to use those in Davinci Resolve, and find it very useful.

[DaniSeeh]

The first is being worked on (at least timeline labels are). No idea on exporting in that format

The second would be much lower priority than a lot of other things. Perhaps a nice QoL thing for a few people, but personally I want color grading tools first. Matt is working on the main architecture and stability primarily right now.