Similar to about:license in firefox. Generated with `cargo-about`.
A few open questions:
- When/how should it be updated (the command I used was `cargo about
generate etc/about.hbs > resources/resource_protocol/license.html`, it
takes ~20 seconds)
- How should `about.toml` be kept in sync with `deny.toml`
- What about licenses for packages that are not crates (i.e. gstreamer)
Fixes: #40266
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Signed-off-by: Ashwin Naren <arihant2math@gmail.com>
