feat(cli): ensure mobile Rust targets are installed

[lucasfernog]

currently we only install Rust targets for mobile when initializing the projects.

Users can commit the Android/iOS projects, so running the init command is not a requirement to develop mobile apps. This change ensures the Rust targets are installed before trying to compile them.

[github-actions]

Package Changes Through d738f95

There are 2 changes which include @tauri-apps/cli with patch, tauri-cli with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
@tauri-apps/cli	2.8.3	2.8.4
tauri-cli	2.8.3	2.8.4

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[FabianLars]

i feel like Tony will not be happy about this or maybe not because mobile dev is already really slow to start anyway

(untested)

[Legend-Master]

Probably ok to me with just this amount of slow down 😂

   4        0.104 rustup target list --installed
   5        0.041 Get-History
   6        0.068 rustc --print sysroot

[lucasfernog]

well we print the sysroot, then read it to list all installed targets :|

[lucasfernog]

DX costs a few seconds 😂 there's still so much we can/must do to ensure a good experience and handle errors etc