v0.14.0

EdenText 0.14.0 brings a new navigator and an embed mode. The navigator docks on either side and
shows headings as a foldable outline, page thumbnails, bookmarks and objects. It can search and
replace, and chapters can be dragged to a new place. Other applications can run the editor in an
iframe and load, export and save documents through a small postMessage API. Italian joins the
program and document languages, and spell check can detect the language of each paragraph.

Thanks to @farragoo for reporting #22, #23, #24 and #25.

Added

• Navigator docked left or right, with a resizable width, its own text size and the reader's
  chapter highlighted (#25)
  • headings as a foldable outline with expand and collapse; a right click moves, levels, selects
    or deletes a chapter, and a heading row can be dragged onto another to move its chapter (#24)
  • a pages tab with thumbnails of every page
  • bookmarks to jump to, rename and delete, and an objects tab with tables, images, text boxes,
    notes, comments and links
  • search and replace above the tabs, listing each match in its paragraph; chapters and pages
    holding a match are marked
• Comments and revisions panes dock on either side too, with their own size and width (#25)
• Embed mode (?embed=1) for host applications: load a document, start a new one, export
  ODT, DOCX or PDF, and hear when it changes or asks to be saved. The host sets the user name,
  language, theme, accent colour and chrome, and can switch the AI assistant off. public/embed.js
  and its types embed.d.ts do the messaging; see docs/architecture/embed.md. Within protocol 1
  messages and fields are only ever added
• Italian as a program language and for spell check and the thesaurus
• Detected paragraph language: a paragraph without its own language is checked in the one it
  is written in. It is on by default, and the language menu can write the detected language into
  the paragraph
• Rename bookmarks, with cross-references and links following along

Fixed

• A bookmark across several paragraphs stays one bookmark in DOCX and ODT (#23)
• Folded comment replies show as "Show 2 replies" in the text colour, behind an arrow (#22)
• A heading clicked in the navigator scrolls into view and shows its number
• The spell-check language in the status bar opens as a full menu, naming whether it applies to
  the selection or the paragraph
• The link, bookmark and cross-reference windows stand out from the page in dark mode
• The text of a DOCX GOTOBUTTON or MACROBUTTON field is kept
• An untitled document keeps the bare app name as the window title