Update 03-interactivity-and-dynamic-uis.md

[jmarceli]

Fix typo. Props CAN'T change over time (as I suppose).

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[ericelliott]

Props can change over time. Typically, those changes are the reason the component re-renders.

[waldreiter]

Seems the wording causes confusion. Just three weeks ago there was #3944.

[jmarceli]

Thanks for clarification in #3944, I was confused by this sentence: Try to use props as the source of truth where possible. One valid use to store props in state is to be able to know its previous values, because props can change over time. I think it might be confusing for other beginners as well.

[zpao]

@ericelliott & @cody are right that it is correct as written but if it's confusingly worded, let's change it. Maybe this is clearer:

… because props may change as a component is re-rendered.

[ericelliott]

👏

[zpao]

No response from author so closing out and will just change myself.