v0.20.0

Minor update this time around. This update most importantly fixes an issue where spool usage would be many times greater than what it should be in some situations.

Frontend

• Added double curly braces to printing dialog template which lets you add a prefix to fields that only shows if the field is set. By @TomW1605 in #446
• Improved contrast for the new spool icon if the color is similar to the background. By @teoteo in #458
• Add option to use full URL in QR codes instead of web+spoolman: prefix. By @samturner3 in #461

Backend

• Fixed issue where spool usage updates from plugins would partially fail because Spoolman failed to send websocket updates to disconnected clients. The spool usage was actually committed to the database correctly, but Moonraker interpreted it as a failure, so it kept retrying the usage, causing the spool usage to skyrocket.

Translations

• Updated Italian translation by Giovanni Locatelli and Federico Di Lorenzo
• Updated German translation by Benedikt Fuchs and Tobias Maschek
• Updated French translation by Vincent MALZIEU
• Updated Dutch translation by Maurice Kevenaar
• Updated Spanish translation by gallegonovato
• Updated Czech translation by Miloslav Kos
• Updated Chinese (Simplified) translation by Zack zhou (WeAPoN.Z)

Full Changelog: v0.19.3...v0.20.0