Actually apply the pre-commit fixers to the codebase.

This can be redone manually with
`pre-commit run --all`

While the pre-commit hook could be merged to run locally,
it is much cleaner to align all the files to best-practice
syntax in a single commit. It is also required for server-side
validation.

web/public/config.js

@@ -4,6 +4,6 @@
 // The actual config is dynamically generated server-side.
 
 var config = {
-    appRoot: "/",
-    disallowedTopics: ["docs", "static", "file", "app", "settings"]
+  appRoot: "/",
+  disallowedTopics: ["docs", "static", "file", "app", "settings"],
 };