Extracted from #125856 (for #96307)

I can reproduce 2 scenarios where a crash occurs:

Crash when document changes

• open preview
• open file as well
• start search in preview
• change file by e.g. adding a word that is searched
• 💥 crash

0045564b-de8d-4298-972c-37c9c6e6650a.dmp.zip

Crash when reopening preview

• open a preview
• open find and start typing
• quickly close the preview
• open preview again
• 💥 crash

03b9b157-63f0-4749-b3e4-699582f41fad.dmp.zip

I am not sure if both crashes are the same.

For the second crash, I wonder if we are missing to call stopFind once the editor closes (we do not even call this when webiew is enabled I think).