Description of problem:

How to configure multiple mount paths in Backstage CR? Is it even necessary, if the translation file would go in a subdirectory of the already mapped app-root/src?

The docs snippet for loading in an override file as a config map expects that to appear in /opt/app-root/src/translations, but at least in the test day cluster, the Backstage CR already has a mountpoint loaded for /opt/app-root/src, and the OCP YAML editor flags it as a duplicate if I add a second. If it needs to be added in a different way, and we expect customers to already mount app-root directories, the docs should mention, or default to how to add it correctly. I left it out since I wasn't sure how to add it properly, and after restarting the rollout, I don't see my new strings being used, so something needs to happen differently.

Help the user understand how to mount something with the same key in the same section, but a different value. If this already exists in OCP docs, we can link to that to help users. If we expect that customers will be configured similarly to our test day cluster, we may want to change the fragment to fit in better.

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