chore(editor-content): Reorder items in relationship field

[nicobytes]

Parent Issue

#31383

Proposed Changes

This pull request includes several changes to the dot-edit-content-relationship-field component and its associated store and tests. The primary focus is on simplifying the data handling methods and updating the UI for better consistency.

Changes to UI elements:

• Updated the drag handle icon in the template from a font-awesome icon to a material icon for better visual consistency (dot-edit-content-relationship-field.component.html).

Changes to data handling methods:

• Replaced the usage of addData and reorderData methods with setData method to streamline data updates (dot-edit-content-relationship-field.component.ts). [1] [2]
• Removed the addData and reorderData methods from the store, consolidating data updates into the setData method (relationship-field.store.ts). [1] [2]

Changes to tests:

• Removed tests related to the addData and reorderData methods since these methods are no longer used (relationship-field.store.spec.ts). [1] [2]

Checklist

• Tests
• Translations
• Security Implications Contemplated (add notes if applicable)

Additional Info

** any additional useful context or info **

Screenshots

Original	Updated
** original screenshot **	** updated screenshot **

This PR fixes: #31383

[dotcms-github-app]

Please use a Conventional Commit title format for this PR. For more information, see https://www.conventionalcommits.org/en/v1.0.0/

Copilot reviewed 5 out of 8 changed files in this pull request and generated no comments.

Files not reviewed (3)

• core-web/libs/edit-content/src/lib/fields/dot-edit-content-relationship-field/dot-edit-content-relationship-field.component.html: Language not supported
• e2e/dotcms-e2e-node/frontend/pages/textField.page.ts: Evaluated as low risk
• e2e/dotcms-e2e-node/frontend/data/defaultContentType.ts: Evaluated as low risk

[dotcms-github-app]

Please use a Conventional Commit title format for this PR. For more information, see https://www.conventionalcommits.org/en/v1.0.0/