Add support for Docker Images tags in kathara settings

[lorenzo93]

At present, the default image section only displays and supports the latest tag. However, there is a need to enhance this functionality to support multiple tags and enable users to choose a custom tag for the default image.

To address this requirement, we need to modify the default image section logic. The following changes are necessary:

• Update the code responsible for fetching and displaying the default image section to retrieve all available tags for the specified image.
• Modify the user interface to allow users to select a custom tag from the list of available tags for the default image.

By implementing these changes, users will have the flexibility to choose a specific tag for the default image, rather than being limited to only the latest tag. This will enhance the usability and customization options within Kathará.