Enhancement: Add confirmation dialog for deleting FilterPresets

[feyruzb]

This pull request enhances the user experience for deleting presets in the PresetMenu.vue component by introducing a confirmation dialog before deletion. Instead of immediately deleting a preset when the delete button is clicked, users are now prompted to confirm their action, reducing the risk of accidental deletions.

User experience improvements:

• Added a ConfirmDialog component that appears when a user attempts to delete a preset, requiring explicit confirmation before the action proceeds.
• Introduced new state variables (showDeleteConfirmDialog, pendingDeleteId, and pendingDeleteName) to manage the dialog's visibility and display the name of the preset pending deletion.
• Replaced the direct call to deletePreset in the delete button's click handler with a new promptDelete method that triggers the confirmation dialog.
• Added promptDelete and confirmDelete methods to handle the confirmation workflow before actually deleting the preset.