Enable the app to import data for custom nutrients (e.g., Magnesium) from online databases like USDA when available, rather than reporting them as zero.
## Bug Description I would like my custom nutrients to import, when provided by online databases, along with the standard nutrients. ## Steps to Reproduce Steps to reproduce the behavior: 1. Add a custom nutrient for Magnesium. 2. Look up an item in the USDA database with non-zero magnesium. (Pick "Fish, salmon, smoked" for example.) 3. Note that Magnesium is reported as zero, but the USDA database actually reports 18mg. You can verify this here: https://fdc.nal.usda.gov/food-details/2706292/nutrients ## Expected Behavior I expect the application to automatically recognize matching nutrients. It would be nice if there were a mapping tool when the nutrient names don't match, but that could be a further enhancement. ## Environment - **SparkyFitness Version:** [v0.16.5.3](https://github.com/CodeWithCJ/SparkyFitness/releases/tag/v0.16.5.3) - **Running Env:** Docker