[Order details] Capitalize addresses and surname by word

[iamgabrielma]

Closes: WOOMOB-136

Description

This PR adds a new property to TitleAndTextFieldRow which allows us to capitalize words on a text field case by case if needed, in this case, we want to capitalize addresses and surnames by word. The original issue mentions only addresses, but surnames make sense as well. Happy to add more capitalization rules but I think that's good by default.

Testing information

• In Orders > Select an order > edit its Shipping Address and/or Billing Information
• Play around with the textfields, observe that addresses and surnames will capitalize words, while the rest of fields will do it per sentence-basis

Changes are only on 586a651 , the rest of commits are to clean up some string duplications I found within the same path.

---

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on all devices (phone/tablet) and no regressions are added.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce iOS Prototype by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce iOS Prototype
	Build Number	29845
	Version	PR #15611
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	84865bd
	Installation URL	6rp1j05mt3d3g

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[joshheald]

Tests OK; small suggestion in-line.

All good, but I'd argue we should go further here:

• First name: words
• Company: words
• City: words
• Postcode: characters
• State: words
• Billing email: never

This is just a setting for the default shift key behaviour; those seem like safe options even though some users will need to override, it probably minimises it for most users.

[joshheald]

Nit: you could probably make this a little neater by just calling it autocapitalization. I'm not sure that "text input" provides additional clarity.

It does match the SwiftUI view modifier, but I think that can be applied to a fairly wide array of controls and so might need the extra clarity.

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 22.4. This milestone is due in less than 2 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

Generated by 🚫 Danger