The dropdown component is not displaying the selected option correctly

[mariajgrimaldi]

The options are barely visible in light mode. I've tested this in a sumac environment without indigo and it works as expected, so my first guess is that it's related to the indigo theme. Let me know if you think otherwise, thanks!

Expected behavior

When selecting an option in the dropdown component for common problems, the selected option should be displayed correctly.

Actual behavior

Currently, the selected option in the dropdown is displaying as white in the light theme, making it difficult to see properly.

Steps to reproduce

1. Add a dropdown common problem.
2. Ensure the light theme is configured.
3. Check if the selected option is displayed correctly.

Additional information

Originally reported here: openedx/wg-build-test-release#419

[DawoudSheraz]

Created #110 to fix this.

[DawoudSheraz]

This has been resolved and is now live on sandbox
cc @mariajgrimaldi