Shipping Labels: Always show all contents of UPS TOS modal

[itsmeichigo]

Closes WOOMOB-874

Description

This PR updates to UPS TOS modal to always be full length to avoid clipping off content in different font sizes and device sizes.

Testing steps

1. Build and run the app on an iPad (or simulator)
2. Log in to a test store with Woo Shipping set up.
3. Navigate to the Orders tab and select an order eligible for label purchase.
4. Select Create shipping label > update the origin address to one that hasn't accepted TOS for UPS.
5. Proceed to purchase a label.
6. Confirm that the UPS TOS modal shows up in full length.

Testing information

Tested and confirmed with simulator iPhone 16 and iPad A16.

Screenshots

Before	After

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

[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	pr15926-3ec6679
	Version	22.8
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	3ec6679
	Installation URL	771r1o69vtas0

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