Add Cargo Arguments and Cross-Architecture Support

[Bennett-Petzold]

Changes apply for the CLI actions build, bundle, and serve. Adds -- [CARGO_FLAGS] and --platform-triple.

Cargo arguments can now be passed through after -- (e.g. dx build -- --timings) via escaped conditionals. This does lock out that space for any later usage without a breaking change to the CLI, but I can't think of any other necessary use for post-argument parsing on this tool.

Since the --target flag is currently taken, a --platform-triple flag allows alternative values for cargo build --target. This can't be done directly in passthrough, since dioxus-cli needs to know the output folder. If reasonable, the existing --target flag should probably be renamed so we can be 1:1 with cargo naming.

If the codebase has any other instances where bundled anyhow errors are flattened by "{}" they should probably be replaced with "{:?}" or "{:#?}" -- this caused a lot of confusion trying to bundle my first Dioxus project.

Closes #1693, closes #1347

[ealmloff]

Since the --target flag is currently taken, a --platform-triple flag allows alternative values for cargo build --target. This can't be done directly in passthrough, since dioxus-cli needs to know the output folder. If reasonable, the existing --target flag should probably be renamed so we can be 1:1 with cargo naming.

We can use the target flag for the target triple for parity with the cargo commands. It is breaking, but it would make it a lot easier to use coming from cargo. --target is also not a very clear name for the index path argument and it looks like it is currently unused. If we expose a different flag to use a different index.html path in the future, it can have a different name

[Bennett-Petzold]

I've removed --platform-triple and given it's behavior to --target, so it works the same as cargo now.

[ealmloff]

Looks good, this changes the --target arg, but because that argument did nothing, I think it is OK to make that change in a minor release.

Thank you!