- suggest next literal/argument
- fix:
```
[22:05:39 ERROR]: Could not pass event AsyncTabCompleteEvent to CoreBukkit v1.0.0-SNAPSHOT
java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
	at core-bukkit-impl-all-1783368113525.jar//de.kentoj.kencommandapi.api.parser2.SuggestionCommandParser.getSuggestions(SuggestionCommandParser.java:39) ~[?:?]
	at core-bukkit-impl-all-1783368113525.jar//de.kentoj.kencommandapi.api.CommandHandler.getSuggestions(CommandHandler.java:44) ~[?:?]
	at core-bukkit-impl-all-1783368113525.jar//de.kentoj.kencommandapi.TabCompleteListener.onAsyncTabComplete(TabCompleteListener.java:27) ~[?:?]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[paper-api-1.21.11-R0.1-SNAPSHOT.jar:?]
```