Fiduswriter

**Features:**
* Source maps for JS errors

**Fixes:**
* Escape MathML

**Fixes:**
* Formula output in docx export on Firefox
* Keep figure id when changing figure

**Fixes:**
* Error thrown when saving deleting document
* Error shown when image cannot be saved
* Let users with document access see associated revisions

**Tests:**
* add test for correct link label for figures

**Fixes:**
* Figure internal targets

**Fixes:**
* allow year 'uuuu' in bibliography
* unescape csl strings and use updated citeproc-js that doesn't crash on apostrophes in nocase string
* Update doc.save() to only save relevant fields.

**Major features:**
* Copyright per document and per media item (mostly used in JATS exporter but can also be incorporated in docs/odt output)
* Cross references
* Save document copy with different template than the original document
* Keyboard shortcut to get out of dialog
* Word count for selection
* Find and replace dialog that works with track changes
* Automatic link to bibliography in outline
* App looks much better in mobile browsers
* Better merging when several users went offline and come back online again

**Other improvements:**
* Improve automatic PWA client updates
* Add 404 responses for non-extsing targets in API
* Usage of stylelint for CSS files
* Translation updates
* Add initadmin management command (thanks to jobdiogenes)
* Make linting management commands work for linting of plugins
* Parse all settings by baking them into the code using webpack and not via django template
* Unify color definitions in just one file

**Testing:**
* Testing in main module now covers 90%
* Testing added for all plugins