[Components][Form] Grammar improvement

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | n/a

I think the "each the" form is not correct in English, as "each" must
generally be used as in "each one of", or "each of", forms that should
not be used here either as the countable aspect is already expressed
by "each field" further in the phrase anyway.
Oh, my fault. He did it this way and I suggested something wrong, I missed the second `for each` somehow...