fix: enable topic thumbnails across the board [breaking]

install/data/defaults.json

@@ -29,7 +29,7 @@
     "maximumTagsPerTopic": 5,
     "minimumTagLength": 3,
     "maximumTagLength": 15,
-    "allowTopicsThumbnail": 0,
+    "allowTopicsThumbnail": 1,
     "registrationType": "normal",
     "registrationApprovalType": "normal",
     "allowAccountDelete": 1,

src/upgrades/1.16.0/topic_thumbs_settings.js

@@ -3,7 +3,7 @@
 const meta = require('../../meta');
 
 module.exports = {
-	name: 'Increase maximum topic thumb size default',
+	name: 'Config changes for new topic thumbnails',
 	timestamp: Date.UTC(2020, 11, 8),
 	method: async () => {
 		const current = await meta.configs.get('topicThumbSize');
@@ -11,5 +11,6 @@ module.exports = {
 		if (parseInt(current, 10) === 120) {
 			await meta.configs.set('topicThumbSize', 512);
 		}
+		await meta.configs.set('allowTopicsThumbnail', 1);
 	},
 };