Make Viewer use Flask templates properly

[1jamesthompson1]

State

Currently the viewer is using flask template in the bare minimal sense for loading the main page.

Problem

However all the reqesting of information could be done alot better with templates as that is what flask is designed to work with. This will allow clearer distinction of layout and content.

Solution

For a start all of the popup boxes should be changed into templates these include:

• Safety issues
• Recommendations
• Links visuals