fix: update alt in inserted image if media was updated

[multipliedtwice]

Sometimes library doesn't add alt to images. It forces the user to delete and insert the image again. Can we update the alt in inserted images every time the source image is updated?

Also,

• PR adds width and height to images because without them Lighthouse complains.
• And adds lazyloading feature if the file name contains lazy or the caption equals lazy.
• Adds History extension

[SalahAdDin]

@thousandsofraccoons why does we need @tiptap/extension-history in this PR?

@dasmikko could you review it please?

[dasmikko]

This is some nice changes!

@SalahAdDin He states in the first comment, that he includes the history extension, which we do want.

[SalahAdDin]

@dasmikko I found a way to add video component support, I would like to add it to tiptap, could you help me to make a pull request adding it as an extension?

I will try to make a Pull Request and you can suggest me changes, etc.