* Fix translation issues for "FIT" and "New Attachment" in attachment editor
* Fix markdown preview persistence and enable external links in attachment editor
* Update preview panel if manually moved from collapsed position
* Match edit view scroll position (by percentage) when changed. This ensures the preview remains in relative sync with the edited document, for example when a large amount of HTML reduces down to a short preview document.
* Fix default preview size to be half the width of the edit widget.
* Set tab stop to 10 and remove base ui file
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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Jonathan White <support@dmapps.us>
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