This commit encompasses the following changes:
* Replace the [More...] link with a button titled "Show more".
* Replace the [Show Less...] link with a button titled "Show less".
* Add various on-hover interactions to the buttons.
* In the condensed view, add fading to the bottom of the message to
visually communicate that the message is truncated.
* Update /help/ description.
Fixes#22801.
Co-authored-by: Evy Kassirer <evy.kassirer@gmail.com>
These files are not Jinja2 templates, so there's no reason that they needed
to be inside `templates/zerver`. Moving them to the top level reflects their
importance and also makes it feel nicer to work on editing the help center content,
without it being unnecessary buried deep in the codebase.
Ishita Gupta
Lauryn Menard