Update region logic

[scooterboo]

Description

Sometimes, there's triggers with actions, but no conditions. It's more accurate to do matching based off of name rather than condition.

Issues fixed by this PR

Unfortunately, I've only seen this fix the slimes at group 133104058 at 629.781 200.000 573.870
That group is a pretty good example of this happening, though.

Type of changes

• Bug fix
• New feature
• Enhancement
• Documentation

Checklist:

• My code follows the style guidelines of this project
• My pull request is unique and no other pull requests have been opened for these changes
• I have read the Contributing note and Code of conduct
• I am responsible for any copyright issues with my code if it occurs in the future.

[eternalcomet]

I think this is not a proper fix. We shouldn't treat EVENT_ENTER_REGION differently. The condition_EVENT_ENTER_REGION_xxx is checked by lua scripts rather than java side. So we need to add missing ScriptLib functions like GetRegionConfigId to make these triggers triggered more naturally. However, sometimes the condition is empty in some triggers, not only for EVENT_ENTER_REGION. So we need to find a general way to handle the event trigger when the condition is empty for other eventTypes, too.