Clean project from marketing content (#50)

* Clean project from marketing content

* Remove some dependencies

src/app/groups/layout.tsx

@@ -1,8 +1,3 @@
-import {
-  FeedbackButton,
-  FeedbackModal,
-} from '@/components/feedback-button/feedback-button'
-import { env } from '@/lib/env'
 import { PropsWithChildren } from 'react'
 
 export default function GroupsLayout({ children }: PropsWithChildren<{}>) {
@@ -11,9 +6,6 @@ export default function GroupsLayout({ children }: PropsWithChildren<{}>) {
       <main className="flex-1 max-w-screen-md w-full mx-auto px-4 py-6 flex flex-col gap-6">
         {children}
       </main>
-      <FeedbackModal donationUrl={env.STRIPE_DONATION_LINK}>
-        <FeedbackButton />
-      </FeedbackModal>
     </>
   )
 }