Localisation updates from https://translatewiki.net.

app/src/html/i18n/qqq.json

@@ -605,7 +605,7 @@
  "inlang_tagsplaceholder": "Textbox placeholder",
  "do_not_use_this_talk_page": "Warning message posted to the bot's talk pages to direct users to the bot's talk page on Meta-Wiki",
  "tag_only": "Configuration header",
- "non-criticaldbfailure": "An error message",
+ "non-criticaldbfailure": "An error message. A \"non-critical DB\" is a database that is less important for the functioning of the system.",
  "archivecopy": "Used as default link text for links to archived copies of web pages",
  "pipelinelagwarning": "Warning message",
  "pipelinelagwarningheader": "Warning header",