This was only used on the saved search index. It let you click on column
headers to sort the table by that column. This doesn't make sense now
that saved searches are paginated.
https://fontawesome.com/how-to-use/on-the-web/other-topics/performance
The default version of Font Awesome uses Javascript to replace <i> tags
with dynamically generated SVG elements. This adds a lot of weight to
the Javascript bundle (at least 1MB+), even when using subsetting to
load only the icons we actually use. The web font version is less
featureful than the JS version, but much lighter weight.
Refactor things to store information about the current user as data
attributes on the <body> tag rather than as <meta> tags. These <meta>
tags are now deprecated and will be eventually removed.
* Store all of the current user's API attributes as data attributes on
the <body> tag.
* Add `CurrentUser.data` for getting data from the <body> tag, and
use it instead of `Utility.meta`.
* Add `CurrentUser.update` for updating the current user's settings.
* Fix a bug with the user named "Anonymous" not being able to edit notes.
Instead of calling /sources.json and rendering the "Fetch source data"
box client-side in Javascript, call /sources.js so we can render the
html server-side.
Fixes#3807. Drops the TagScript module entirely and replaces it with
a simple call to Post.tag.
Simultaneously fixes#3773 as a consequence of removing TagScript.run.
Post.update already updates data-tags by itself, so there was no need
for TagScript.run to update data-tags as well.
