Host GIFs and video examples in `iced.rs` #4461

Job	Run time
web	3m 30s
native (ubuntu-latest, stable)	7m 17s
native (ubuntu-latest, beta)	5m 31s
native (windows-latest, stable)	7m 24s
native (windows-latest, beta)	10m 24s
native (macOS-latest, stable)	6m 25s
native (macOS-latest, beta)	5m 23s
	45m 54s

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