feat: exit alias for quit command in repl

src/cli/repl/commands/quit.ts

@@ -3,7 +3,7 @@ import { log } from '../../../util/log'
 
 export const quitCommand: ReplCommand = {
 	description:  'End the repl',
-	aliases:      [ 'q' ],
+	aliases:      [ 'q', 'exit' ],
 	usageExample: ':quit',
 	script:       false,
 	fn:           () => { log.info('bye'); process.exit(0) }