## Description
Markdown paste with images
Take MD from
https://github.com/webstudio-is/webstudio/pull/3569#issuecomment-2171213517
Paste, see images are uploaded
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
Text editor relied on legacy denormalized tree which on updates may lead
to orphan instances. Here migrated to normalized instances and
considered deleting instances. Added tests for lexical conversions.
Ivan Starkov