Implement Flows/Index and make it the main application page.

[mgallig]

Setup a page something like the mockup above that does the following:

Gets all Templates Gets All Flows

Shows all templates in the upper screen and creates links on button press to flow/start/(id of flow)

Shows all flows in lower screen and creates links on button press for the following actions:

• "Fill" -- maps to flows/fill/{id}
• "Delete" -- maps to flows/delete/{id}
• "Generate" -- maps to flows/generate/{id}
• "Download" -- maps to flows/download/{id}