Auto merge of #22491 - asajeffrey:magicleap-keyboard-visibility, r=jdm

Add basic keyboard support for magicleap

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Add basic keyboard support for magicleap servo.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #22401
- [X] These changes do not require tests because we don't test magicleap UI

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Cargo.lock

@@ -2122,6 +2122,7 @@ dependencies = [
 name = "libmlservo"
 version = "0.0.1"
 dependencies = [
+ "keyboard-types 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "libservo 0.0.1",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-egl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",