FTM: New UVE Toolbar - Implement "Bookmarks" button

[KevinDavilaDotCMS]

Parent Issue

https://github.com/dotCMS/core/issues/30598

Task

Implement the logic for the "Bookmarks" button in the new UVE Toolbar component. This task involves creating a new store logic for the withEditorToolbar() feature store.

This implementation involves creating a new feature store (newWithEditorToolbar) that will conditionally replace the current withEditorToolbar based on the feature flag's status like

export function withEditorToolbar() {
    if(UVE_FUTURE_TIME_MACHINE_ENABLED) {
        return newWithEditorToolbar()
    }

    return oldWithEditorToolbar();
}

Proposed Objective

Add the "Bookmarks" button logic to the new toolbar and ensure it functions correctly under the feature flag.

Acceptance Criteria

• Create a new store logic newWithEditorToolbar() that will be used when the FEATURE_FLAG_UVE_NEW_PREVIEW_MODE feature flag is enabled.
• Update the withEditorToolbar() function to return newWithEditorToolbar() when the feature flag is enabled, otherwise return oldWithEditorToolbar().
• Define the new state object for the new toolbar in newWithEditorToolbar().
• Implement the logic for the "Bookmarks" button in the new toolbar store.
• Ensure the "Bookmarks" button functions correctly and integrates seamlessly with the new toolbar.