When image is not loading it should show error, but also the labelling interface

**Describe the bug**
We have a scenario, where image we are pointing to if not available or is an invalid image.
Label studio shows warning saying could not load the image, but doesn't show the content for annotation. We would still like a way to go on with annotations even if it's not possible to load the image.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'Label Studio'
2. Add a project with has
3. Point to an invalid image
4. Label studio wont show the labelling interface, just an error

**Expected behavior**
It should be possible to add , which allows annotators to annotate the example, even if image doens't load.

**Screenshots**

**Environment (please complete the following information):**
- OS: Ubuntu
- Label Studio Version Label Studio version: 1.5.0

**Additional context**
Add any other context about the problem here.