Move to toml from toml_edit

[BD103]

This was originally a normal dependency bump for our lockfiles, but...

toml v0.9.0 has released with fun performance improvements! Check out Ed Page's blog post on it, there's some cool insights there.

One of the biggest things that stood out to me is that toml no longer depends on toml_edit. My original reasoning for using toml_edit instead of the usual serde + toml combo is because toml v0.8 and earlier used toml_edit under the hood. Since they both used the same infrastructure, and we didn't really need serde, I figured it would be more efficient to just use toml_edit.

This is no longer the case! toml now does its own parsing and is faster than toml_edit. We don't need the extra functionality of toml_edit, so this PR drops it completely and switches to toml + serde.

Most of the migration was simple and 1:1, but there are some spots that need extra testing to ensure they stay the same behaviorally:

• impl Display for CliConfig (it may print CliConfig slightly differently)
• configure_default_web_profiles() (I believe DocumentMut pretty much translates Table, but it needs confirmation!)

[DaAlbrecht]

new:

❯ bevy build web -v
debug: using defaults from bevy_cli config:
      features = ["dev"]
      default-features = false
      rustflags = [
          "--cfg",
          'getrandom_backend="wasm_js"',
      ]
info: compiling to WebAssembly...

old:

❯ bevy build web -v
debug: using defaults from bevy_cli config:
      features = ["dev"]
      default-features = false
      rustflags = ["--cfg", 'getrandom_backend="wasm_js"']

I think that's absolutely fine, but what annoys me a bit now that I see it (was already like this before):

[BD103]

I think that's absolutely fine, but what annoys me a bit now that I see it (was already like this before):

Hmmm now that's bothering me too! Let me make a little change real quick...

[BD103]

Much better!