User Story 2.5: Support Thank You Page

[hannahoi98]

• [x] Create the pulsating indicator that should be between the redirection from the donation form and to the thank you text.
• [x] The same kind og pulsation should be used on the submit button for the forms, collaborate with the people working on user story 2.4
• [x] Style the "Thank you" Text
• [x] Ensure for responsive design for mobile, tablet and desktop.
• [ ] Scrum master will check in with the Product Owners if the page should close automatically within a set amount of time