Move from instant -> web_time

[jleibs]

What

instant has at least one issue affecting us:

• SystemTime::elapsed() is broken sebcrozet/instant#49
  It also hasn't been updated in 18 months.

web-time: https://github.com/daxpedda/web-time appears to achieve the same goals, but is under active development and notably doesn't have the bug that instant had.

This replaces all usage of instance with web_time.

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)

PR Build Summary: https://build.rerun.io/pr/2093

[emilk]

Nice!

Let's also forbid instant in scripts/clippy_wasm/clippy.toml under disallowed-types.

We could also add it to the [bans] list in deny.toml… but banning instant from all our dependencies may be taking it a bit too far

[emilk]

Oh, and make sure you test it on the web!

[jleibs]

Turns out there does appear to be a regression... if you open a web-viewer in a hidden tab and allow enough time to pass (3 to 4 seconds?) then when changing to that tab we don't have any content for the spatial views:

Seems like we end up in a state where maybe an unknown time is ends up selected or something goes weird with forwarding playing of time.

There's a known issue listed in the repo, so I'm wondering if this is related.

Currently a known bug is affecting browsers on operating system other then Windows. This bug prevents Instant from continuing to tick when the context is asleep. This doesn't necessarily conflict with Rusts requirements of Instant, but might still be unexpected.

So far only seems to repro when loading a hosted RRD in the web-viewer:

open http://127.0.0.1:9090/?url=https://app.rerun.io/data/commit/cafe140/colmap_fiat.rrd

[jleibs]

The above issue appears likely to have been caused by: #2103

With that merged, we should investigate this again

[emilk]

The issue was fixed by #2106 so I think this PR just needs a rebase and a new test

[emilk]

Works great in Firefox and Chromium on my Mac.