Papers 48.1
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* Bug fixed:
  - #412 TOC occasionally doesn't work (Markus Göllnitz)
  - #409 Crash moving over or clicking on title (Qiu Wenbo)
  - #405 When searchbar has an existing query but is deselected, Ctrl+F should
    refocus and select-all existing text of the SearchEntry (Roberto Vidal)
  - !439 Fullscreen window based on metadata (Marek Kašík)
  - !518 help: List "search-not-found.png" in media files (Marek Kašík)
  - Fix rendering lags when view is zoomed in and text is selected (lbaudin)
  - Various memory leak fix (Pablo Correa Gómez, Marco Trevisan)
  - Various fix for document signature (Marco Trevisan)

* Translation updates:
  - Uzbek (Latin) (Baxrom Raxmatov)
  - German (Philipp Kiemle, Tim Sabsch)
  - British English (Andi Chandler)
  - Finnish (Jiri Grönroos)
  - Indonesian (Andika Triwidada)

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