Add documentation about using the web interface

[astrophpeter]

🚀 Feature Request

Is your feature request related to a problem? Please describe.

• There is no documentation explaining how to use the blast web interface, we need to fix that!

Describe the solution you'd like

Add a section to the documentation that shows screenshots of each card display on the website and explains what is going on. Something very similar to YSE_PZ read the docs would be amazing: https://yse-pz.readthedocs.io/en/latest/dashboards.html

[manning-ncsa]

@djones1040 Documentation like YSE_PZ has for the web interface definitely looks nice and is informative, but in practice there are a few reasons I actually think we should not write such documentation. Documenting the UI places an extra burden to update the screenshots and text to stay in sync with whatever changes are made to the UI, and this is challenging given the typical developer resources. More importantly, though, the web interface should be as intuitive and self-explanatory as possible; at this point, software users do not expect to need an external manual to operate a UI and are as likely to abandon the software as they are to seek out such documentation. That being said, any work we would put into UI documentation we could instead devote to the UI itself, both in improving the design and adding in situ documentation in the form of tooltips, text on the page, etc that are tightly coupled to the page source code.