Tag numeric values in text fields that scale with recipe scaling

[SpencerDub]

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Please provide a concise description of the problem that would be addressed by this feature.

Certain quantities or numbers in a recipe do not scale when the recipe scales, because they are not ingredient quantities. For example:

1. A note on an ingredient: "1 cup chopped shallots, about 4 shallots"
2. A recipe step might instruct you to use a pseudo-ingredient that is created during cooking: "Reserve 1/2 cup of the cooking water"
3. A recipe step might instruct you to use part of a listed ingredient: "Add 1 Tbsp. of the chili powder"

Please provide a concise description of the feature that would resolve your issue.

If certain numeric strings within other text fields could be denoted as scalable, perhaps with a syntax as simple as {{value}}:

1 cup chopped shallots, about {{4}} shallots

Reserve {{1/2}} cup of the cooking water

Add {{1}} Tbsp. of the chili powder

Then, when the recipe is scaled, these values are scaled just like ingredient quantities.

Please consider and list out some caveats or tradeoffs made in your design decision

This would probably be an advanced user function, since it feels "code-y" in a way that might scare off users without technical knowledge.

Would have to account for instances when the contents of the tag are not a numeric value—what does Mealie do when told that {{1 cup}} (rather than {{1}} cup) is supposed to scale?

Additional Information

• If this is accepted I'm willing to submit a PR to provide this feature
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[SpencerDub]

Having just looked at my Mealie instance a little more, it seems the current Servings field handles ignoring the non-numeric characters the way I would want for the {{1 cup}} situation.