Fix pluses not being decoded from the path

src/lib/booru/tag-utils.ts

@@ -102,7 +102,8 @@ export function resolveTagNameFromLink(tagLink: URL): string | null {
 
   return decodeURIComponent(encodedTagName)
     .replaceAll(/-[a-z]+-/gi, match => slugEncodedCharacters.get(match) ?? match)
-    .replaceAll('-', ' ');
+    .replaceAll('-', ' ')
+    .replaceAll('+', ' ');
 }
 
 /**