[WIP][v1.41.0] Save screenshot as GIF?

So Summit for Lemmy already supports "advanced screenshots" letting you take screenshots of posts and comments with ease, allowing you to include any and as many comments as you want. However this doesn't work as well if the post or comments have animated GIFs in them. I'm working on a feature that will allow you to take an "advanced screenshot" but as a GIF so you can capture any video or GIF as well.

Changes so far

• Added a feature to "record" a screenshot as a video or GIF.
• Fixed a bug where links are invisible in conversations.
• Changed long tap on the header, expand button or the side to expand actions as well.
• Added option to mark a post as read/unread in the post option's menu.