* Refactor MFileBody using MVVM and move to shared component
* Simplyfing rendering properties
* Create a first version of view model for the component
* Simplifying component properties and make it possible to override module css using data-* attributes
* Create a MBodyFactory in element-web and use it to render MFileBodyView from MessageEvent
* Use <MediaBody instead of <button to support legacy rendering
* Updated styling and comments
* Refactoring className from snapshot to component property
* Rename MFileBody* to FileBody*
* Rename MFileBody* to FileBody*
* Refactoring render branches to allow for displaying nothing
* Fix styling issues
* Fix lint errors
* Fix for css selectors in playwright tests
* Remove the MFileBody component and change all callers to use MBodyFactory:FileBodyView
* Remove unused strings in element-web
* Revert to render text in story iframes
* Fix for prettier error
* Fix playwright test css selectors
* Apply legacy styling in element-web
* Add legacy styling for mx_MFileBody
* Restore file
* Change from <div to <button
* Calculate span width ad update screenshots
* Remove width calculation and update snapshots
* Fix for letter-spacing and better content in story
* Updated playwright screenshots
* Updated snapshots
* Fixing Sonar errors/warnings
* Removed extra parentheses
* Changes after review
* Change border-radius to px and updated snapshots
* Fix typo in description
* And another typo fix
* Changes after review
