Localization: Added translations for area validation property labels

[bjarnef]

Prerequisites

• I have added steps to test this contribution in the description below

Description

I noticed a few labels which seems to render just the keys/aliases.

Before

After

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[Copilot]

Pull Request Overview

This PR fixes localization issues in the block grid area configuration settings by replacing hardcoded string labels with proper localized terms. The changes ensure that property labels display translated text instead of raw keys/aliases.

• Replaces hardcoded string literals with localized terms using this.localize.term()
• Adds missing translation keys to both English and Danish language files

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/Umbraco.Web.UI.Client/src/packages/block/block-grid/components/block-grid-area-config-entry/workspace/views/settings.element.ts	Updates property labels to use localized terms instead of hardcoded strings
src/Umbraco.Web.UI.Client/src/assets/lang/en.ts	Adds English translations for the new localization keys
src/Umbraco.Web.UI.Client/src/assets/lang/da.ts	Adds Danish translations for the new localization keys

[AndyButland]

Works as expected. Once again, thanks @bjarnef.