Fix missing required Read The Docs config

Author: Ortham

.readthedocs.yaml

@@ -6,6 +6,7 @@ sphinx:
 formats: all
 
 build:
+  os: ubuntu-20.04
   tools:
     python: '3.10'
 

resources/l10n/template.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: LOOT 0.16.0\n"
 "Report-Msgid-Bugs-To: https://github.com/loot/loot/issues\n"
-"POT-Creation-Date: 2021-11-20 01:02+0000\n"
+"POT-Creation-Date: 2021-12-07 17:58+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <[email protected]>\n"
@@ -349,7 +349,6 @@ msgstr ""
 #: src/gui/html/js/game.ts:141
 #: src/gui/html/js/loot.ts:566
 #: src/gui/html/js/loot.ts:567
-#. An abbreviation of Not Applicable.
 msgid "N/A"
 msgstr ""