rustdoc-search: move animated throbber to bottom of results list

[notriddle]

Preview: https://notriddle.com/rustdoc-html-demo-12/throbber/std/index.html

Complaints about it being distracting, and causing people to wait until all of the results are loaded instead of using the incremental results as they come in, make me think it was a bad idea to put it in the tab.

Part of #146048

[rustbot]

Some changes occurred in HTML/CSS/JS.

cc @GuillaumeGomez, @jsha, @lolbinarycat

[rustbot]

r? @GuillaumeGomez

rustbot has assigned @GuillaumeGomez.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

[GuillaumeGomez]

I disagree: how do I know there is nothing more to load?

[fmease]

causing people to wait until all of the results are loaded instead of using the incremental results as they come in

Lol, that's so funny. That's exactly what I started to do subconsciously looking back >.< As a middle ground, we could maybe hide the throbbers for the inactive/unselected tabs (only making them (re)appear once you select the relevant tab)? Unsure if that'll help in any way.

[notriddle]

I disagree: how do I know there is nothing more to load?

The number isn't shown until it's done.

[GuillaumeGomez]

I disagree: how do I know there is nothing more to load?

The number isn't shown until it's done.

And that made me think it was a bug. ^^'

[GuillaumeGomez]

So thinking about it some more (although I REALLY love this loading animation), maybe what is missing is instead a marker to notify that the search is complete.

[lolbinarycat]

random idea: move the throbber to the end of the results, so it's only visible if the user has scrolled past all of the results that have already been loaded.

[GuillaumeGomez]

Could work too I guess.

[notriddle]

Here's a version using @lolbinarycat's idea.

[GuillaumeGomez]

Can you host it somewhere please?

[notriddle]

@GuillaumeGomez Sure, https://notriddle.com/rustdoc-html-demo-12/throbber/std/index.html

[GuillaumeGomez]

Doesn't render as nicely but if that makes people happy...

[notriddle]

I'm confused. What's not as nice about it?

[GuillaumeGomez]

Not sure exactly. Just "feel" less good but I honestly can't word what's bugging me...