Explicitly mention ID type names in docs and panic messages #4379

Job	Run time
Test (nightly)	5m 57s
Build docs	47s
Examples	4m 36s
Test (macOS)	5m 0s
Check minimal versions	53s
MSRV	0s
Test (stable)	5m 0s
Test (beta)	5m 22s
Test (Windows)	9m 24s
Test (native-tls)	5m 39s
Test (no default features)	46s
Test (no cache)	5m 7s
Test (no gateway)	3m 30s
Test (unstable Discord API features)	1m 18s
Test (simd-json)	6m 40s
Test (chrono, chrono)	1m 15s
Test (builder without model, builder, true)	52s
Test (unstable Discord API (no default features), unstable_discord_api, true)	29s
	1h 2m 35s

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