Create unique Agents preview React component

[lucianogorza]

Part of Epic
#6129

Description

This issue is intended to replace the rendering of several agent preview components with a single React component on the angular template context.

The objectives of this issue are as follows:

• Minimize the dependency on Angular.js specifically for the Agents preview (Endpoints Summary).
• Remove inefficient statistics such as the Evolution chart and Most active agent stat.
• Enhance the UX when there are no agents by providing a page where the user can decide to add an agent, and the redirection to the agent registration form is not automatic.
• Remove duplicate files and code.

Tasks

• Create unique Agents preview (Endpoitns Summary) React component and delete Angular.js controller
• Use the new component in the angular template
• Remove evolution chart
• Make Register Agent component accesible from a new url
• Create a new component to show when there are no registered agents instead of directly redirect to register agent.
• Restructure files and folders components