Add placeholder or help text to `Location ID` field in config
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# Feature Request

### Description
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This text or the text field generated when you click `Add Location ID` should be updated to mention the format of the ID... I was stupid and saw the locations print out human friendly names on startup and thought that was the ID 

<img width="730" alt="image" src="https://user-images.githubusercontent.com/6445731/222028049-c9e2f58f-6b68-4294-b4c1-f7b8ded7dd35.png">

This was for sure human error, but it'd be nice to help others avoid my same fate 🫠

### Describe the solution you'd like
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A place holder of `XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX` would be ideal, if not, that same text as a hint below the field

### Describe alternatives you've considered
<!-- ✍️--> Have you considered any alternative solutions or workarounds?
N/A

### Device data
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N/A
