* Fetches link previews for all links in message (instead of just the first one)
* message url component to display preview for multiple urls
* Revert visible behaviour back to only showing one URL preview
While fetching all link previews in the text message.
* Moved URL preview VM to MessageComposer
* Added com.beeper.linkpreviews to messages sent with the markdown compositor
* MSC 4452 implemented for the older (markdown) composer
* claude told me to use logger instead of console
* Previews generated with snapshot instead of vm
* moved attachPreviews to a separate file
* added attach URL previews to rich text editor
* don't let attachUrlPreviews block clearning the composer
* fixed linter errors
* moved url preview behind labs feature gate
* passed linters
* moved lab feature checking to where attach preview is used
* claude wrote some unit tests for url previewing
* fixed linter errors
* added feature to labs.md
* fixed linter errors
* fixed oxfmt error
* set previews to none if all previews failed
* resolved PR reviews besides the ones that requires a larger code change
* moved url preview VM creation to message composer
* removed delay when clearing composer url preview on message send
* minor changes to stop using globals everywhere
* moved debouncing responsibility to urlpreviewVM
* minor lint fixes
* added comment
* remove composer content from the state of urlpreview, moved it to the vm
* urlpreviewwrapper depends on the vm only
* added comments
* edited the comment
* updated snapshots
* claude fixed tests
* enable feature for tests that requires MSC4095
* updated snapshot