Change C++ JavaScript communication system to use Socket.io

[konnorandrews]

New feature request

[We will consider your request but it may be closed if it's something we're not actively planning to work on.]

Please replace this line with a summary of your suggested feature.

Requirements

[explain the concrete changes to the project needed for your feature, example below]

• Add a "Delete" button to the dataset management page.
• Non concrete change: Create system for showing messages to user.
• Add delete function to dataset interface.

Other thoughts

[explain any other ideas or thoughts you have about this feature.]