l10n(es): update Spanish localization

Currently translated at 100.0% (146 of 146 strings)

Change-Id: I9f02bbedf8b37be4b1c545f9eaa641d248a5ceef
Co-authored-by: AdriĆ  <me@avm99963.com>
Translate-URL: https://i18n.avm99963.com/projects/tw-power-tools/extension-strings-json-format/es/
Translation: TW Power Tools/Extension strings (JSON format)
diff --git a/src/static/_locales/es/messages.json b/src/static/_locales/es/messages.json
index a30fa1f..6b2d5be 100644
--- a/src/static/_locales/es/messages.json
+++ b/src/static/_locales/es/messages.json
@@ -608,5 +608,9 @@
     "actionbadge_killswitch_enabled": {
         "message": "Algunas funciones se han desactivado forzosamente. Haz clic para más info.",
         "description": "Tooltip for the extension icon shown when a kill switch has been enabled."
+    },
+    "inject_perforumstats_chart_communityguides": {
+        "message": "Guías de la comunidad",
+        "description": "Label shown in the legend of the per-forum activity chart."
     }
 }