Forms: sentence case field names

[simison]

Our in-house style is to use sentence casing. In the interim this might mean inconsistencies across UIs like the editor, but longer term this will settle and we have to start somewhere.

Internal references:

• PCYsg-5n-p2#capitalization
• pgijrj-42-p2

We've already used sentence casing in new UIs, and now that innner blocks refactor is merged, we can go through the rest of UIs and update texts.

Rest of UI updated in separate PR.

E2E tests updated in separate PR:

• Forms: E2E test updates for sentence casing Forms UI wp-calypso#104066

Proposed changes:

Before

After

Other information:

• Have you written new tests for your changes, if applicable?
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Testing instructions:

• Go to '..'

[github-actions]

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bin/jetpack-downloader test jetpack update/forms-field-names-lowercase

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[github-actions]

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Code Coverage Summary

This PR did not change code coverage!

That could be good or bad, depending on the situation. Everything covered before, and still is? Great! Nothing was covered before? Not so great. 🤷

Full summary · PHP report · JS report

[ilonagl]

Nice! 🚀