[AC-3394] refactor: use typing event to indicate bot is responding

[bang9]

Changes

• use typing event to indicate bot is responding

ticket: AC-3394

Additional Notes

Checklist

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[github-actions]

Size Change: +35 B (+0.01%)

Total Size: 617 kB

Filename	Size	Change
./dist/__bundle-b5ef7de4-********.js	876 B	+1 B (+0.11%)
./dist/index-********.js	303 kB	+2 B (0%)
./dist/index.umd.js	289 kB	+26 B (+0.01%)
./dist/Placeholder.error-********.js	345 B	+1 B (+0.29%)
./dist/Placeholder.loading-********.js	186 B	+3 B (+1.64%)
./dist/PlaceholderCommon-********.js	247 B	+2 B (+0.82%)

ℹ️ View Unchanged

Filename	Size
./dist/__bundle-46d64517-********.js	4.07 kB
./dist/__bundle-7c3d40f4-********.js	21 B
./dist/index.es.js	171 B
./dist/Placeholder.noChannels-********.js	182 B
./dist/Placeholder.noMessages-********.js	182 B
./dist/style.css	9.52 kB
./dist/TokensBody-********.js	9.08 kB

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