Fix messaging templates name cell display

[jpople]

Ticket ENG-2406

Description Of Changes

Fixes a regression in #7196 which caused messaging templates table to incorrectly display messaging template keys instead of human-readable labels.

Steps to Confirm

1. View messaging templates table; verify labels are shown, not ID strings

Pre-Merge Checklist

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Project	Deployment	Review	Updated (UTC)
fides-plus-nightly	Ready	Preview, Comment	Jan 16, 2026 5:44am

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
fides-privacy-center	Ignored		Jan 16, 2026 5:44am

[greptile-apps]

Greptile Summary

Fixed a regression from PR #7196 where the messaging templates table was displaying enum keys (e.g., privacy_request_complete_access) instead of human-readable labels (e.g., "Access request completed").

Changes:

• Updated the Message column render function to use CustomizableMessagingTemplatesLabelEnum mapping for proper label display
• Modified Cypress test to verify human-readable labels appear and enum keys do not

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• Straightforward bug fix that correctly maps enum keys to display labels. The change is well-tested with appropriate Cypress assertions and follows existing patterns in the codebase.
• No files require special attention

Important Files Changed

Filename	Overview
clients/admin-ui/src/pages/notifications/templates/index.tsx	Fixed regression by mapping template type enum keys to human-readable labels
clients/admin-ui/cypress/e2e/messaging.cy.ts	Updated test to verify human-readable labels are displayed instead of enum keys

[lucanovera]

Confirmed the bug and that this PR fixes the issue. Approved!