Problems with `cargo_profile`

[tomasol]

I have noticed a couple of issues while trying to use cargo_profile (b585670)

If cargo_profile is specified in the Trunk.toml without <link data-trunk rel="rust" it will be ignored. My guess is that the HTML pipeline will call RustApp::new_default where the profile is set to None.

Also, passing --cargo-profile argument to the CLI does not work either, unless <link data-trunk rel="rust" is present.

The workaround is to specify the profile in the attribute, e.g.

<link data-trunk rel="rust" data-type="main" data-cargo-profile-release="release_trunk" />