Add design for the new job offer workflow

[rakici]

• [x] Redesign the home page
• [x] Design of the job listing page
• [x] Design of the job listing page (Responsive)
• [x] Design of the job posting form
• [x] Paiement dialog, that is triggered when the job offer is submitted
• [x] Dialog for the job application (should show a short message or redirect to another url)

[Theryx]

See Figma Link here: https://www.figma.com/file/829aq4WfAAx5HUJRNa1z8r/Jobsika-team-library?node-id=0%3A1&t=Rj0ws9GenuY7mgO2-1