There are some low-hanging fruits we can pick up to improve UI, listed below.
- Use a dashicon (eg. https://developer.wordpress.org/resource/dashicons/#format-image)
- Push the menu right after the Media (maybe remove "GPI" to make it shorter)
- Rename the first submenu item to "Library"
- Use same UI elements for the search bar and the buttons as the rest of wp-admin
- Use grid instead of flexbox for displaying the image, to have them use the same dimensions (similar to the current medialibrary plugin)
- Image link after importing should open on the same window
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