fix: uri paste from Safari becoming blank pastes

[chrisirhc]

Draft PR demonstrating issue and fix for part of #7214 :

Safari's (or GitHub) Share button -> Copy copies a rich text link that results in noop in the Appflowy when pasting. Workaround: tap in the address bar to copy and paste

This is a pretty hacky fix, but it demonstrates the issue where the uri type needs to be manually converted to html to be used by the paste. Otherwise, the paste results in a noop per the recording in #7214 .

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PR Checklist

• My code adheres to AppFlowy's Conventions
• I've listed at least one issue that this PR fixes in the description above.
• I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• All existing tests are passing.

Fixes #7283

[CLAassistant]

All committers have signed the CLA.

[LucasXu0]

Fixed in this PR. #7326