Label trained models

[ffrose]

Ability to add notes/description to each trained model entry so we are able to label and identify them more easily.

This function will not rename anything but will be an additional field in the models overview UI.

• Able to add & edit the label
• When the description is too long, hovering it will display the full length of the content.

[ruudel]

Tested in test environment. Description column added: