eframe web: Don't throw away frames on click/copy/cut #8145

Job	Run time
Format + check + test	5m 1s
cargo-deny aarch64-apple-darwin	39s
android	32s
Check wasm32 + wasm-bindgen	2m 28s
cargo-deny aarch64-linux-android	41s
Check Windows	1m 43s
cargo-deny i686-pc-windows-gnu	39s
cargo-deny i686-pc-windows-msvc	39s
cargo-deny i686-unknown-linux-gnu	40s
cargo-deny wasm32-unknown-unknown	39s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	42s
cargo-deny x86_64-pc-windows-msvc	45s
cargo-deny x86_64-unknown-linux-gnu	38s
cargo-deny x86_64-unknown-linux-musl	43s
cargo-deny x86_64-unknown-redox	37s
	17m 44s

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