Add cosmic text example #1773

Job	Run time
cargo check (aarch64-android)	30s
cargo check (msrv) (windows-latest)	2m 17s
cargo check (msrv) (wasm32)	53s
cargo clippy (windows-latest)	1m 9s
cargo check (msrv) (macos-latest)	1m 3s
cargo clippy (macos-latest)	1m 8s
cargo clippy (wasm32)	58s
cargo check (msrv) (ubuntu-latest)	52s
cargo clippy (ubuntu-latest)	1m 12s
cargo doc	27s
formatting	12s
Prime LFS Cache	4s
cargo test (wasm32)	27s
typos	5s
cargo test (windows-latest)	2m 18s
cargo test (macos-latest)	38s
cargo test (ubuntu-latest)	1m 7s
	15m 20s

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