[firestore] Invalid Collection ID causes an error to occur and UI to disappear

**Describe the bug**
Entering invalid input into the following form causes an error and the UI disappears


**To Reproduce**
Steps to reproduce the behavior:

1. Go to '**Firestore**'
2. Click on '**+ Start collection**'
3. Click '**Collection ID**' input
4. Enter or paste in something invalid, like "https://example.com/"

**Expected behavior**
Shows an error message like "Invalid collection name", or something similar.

**Screenshots**
This is me pasting in "https://example.com/"
https://gyazo.com/a90851e51de9c71fa8a9c2e9474fc8e2

**Desktop (please complete the following information):**

- OS: **Windows**
- Browser: **Firefox**
- Version: **140.0.2**