Add hiddenActions Functionality to Dialog Component

[lucasferreiralimax]

This pull request introduces a new input property, hiddenActions, to the dialog component. This feature allows the hiding of the action buttons (confirm and cancel) when hiddenActions is set to true.

3. Added Tests:
   • Implemented tests to verify that the action buttons are hidden when hiddenActions is set to true and that they render correctly when hiddenActions is false.

Testing:

• All existing and new tests have been run successfully.
• The functionality has been tested in scenarios where the dialog is opened with both hiddenActions set to true and false.

Documentation:

• Updated the component documentation to include details about the new hiddenActions property.

[github-actions]

Visit the preview URL for this PR (updated for commit f53e222):

https://up-window-angular--pr17-hidden-actions-6g6po5nd.web.app

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