[website] Add CopyCopter as gold sponsor and amend backlinks on README

Added CopyCopter as a new gold sponsor and amended the README to feature our backlink sponsors as well.

Context: https://app.frontapp.com/open/msg_29ce5wk6
https://mui.zendesk.com/agent/tickets/21847

README.md

@@ -77,6 +77,9 @@ via [Open Collective](https://opencollective.com/mui-org) or via [Patreon](http
   <a href="https://megafamous.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://mui.com/static/sponsors/megafamous.png" alt="megafamous.com" title="MegaFamous: Buy Instagram followers and likes." loading="lazy" /></a>
   <a href="https://www.dialmycalls.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/288.png" alt="dialmycalls.com" title="DialMyCalls: Send text messages, calls, and emails." loading="lazy" /></a>
   <a href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/288.png" alt="goread.io" title="Goread.io: Instagram followers, likes, views, and comments." loading="lazy" /></a>
+  <a href="https://copycopter.ai/" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/copycopterai/e167216/logo/256.png" alt="copycopter.ai" title="CopyCopter: Turn prompts into videos at ultra speed." loading="lazy" /></a>
+ <a href="https://twicsy.com/" rel="noopener sponsored" target="_blank" alt="buzzoid.com" title="Buzzoid: Instant delivery Instagram followers." loading="lazy" />Buzzoid</a>
+ <a href="https://buzzoid.com/" rel="noopener sponsored" target="_blank" alt="twicsy.com" title="Twicsy: Instant delivery Instagram followers." loading="lazy" />Twicsy</a>
 </p>
 
 Gold sponsors are those who have pledged \$500/month or more to MUI.

docs/data/material/discover-more/backers/backers.md

@@ -28,6 +28,7 @@ via [Open Collective](https://opencollective.com/mui-org) or via [the for-profi
   <a data-ga-event-category="sponsor" data-ga-event-action="docs-backers" data-ga-event-label="megafamous.com" href="https://megafamous.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px;"><img height="96" width="96" src="/static/sponsors/megafamous.png" alt="megafamous.com" title="MegaFamous: Buy Instagram followers and likes." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="docs-backers" data-ga-event-label="dialmycalls.com" href="https://www.dialmycalls.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/96.png" srcset="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/288.png 3x" alt="dialmycalls.com" title="DialMyCalls: Send text messages, calls, and emails." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="docs-backers" data-ga-event-label="goread.io" href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px; display:flex;"><img height="110" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/96.png" srcset="https://images.opencollective.com/goread_io/eb6337d/logo/288.png 3x" alt="goread.io" title="Goread.io: Instagram followers, likes, views, and comments." loading="lazy" /></a>
+  <a data-ga-event-category="sponsor" data-ga-event-action="docs-backers" data-ga-event-label="copycopter.ai" href="https://copycopter.ai/" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px; display:flex;"><img height="96" width="96" src="https://images.opencollective.com/copycopterai/e167216/logo/256.png" srcset="https://images.opencollective.com/copycopterai/e167216/logo/256.png 3x" alt="copycopter.ai" title="CopyCopter: Turn prompts into videos at ultra speed." loading="lazy" /></a>
 </p>
 
 <!--

docs/src/components/home/GoldSponsors.tsx

@@ -64,6 +64,13 @@ const GOLDs = [
     description: 'Instagram followers, likes, views, and comments.',
     href: 'https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=homepage',
   },
+  {
+    src: 'https://images.opencollective.com/copycopterai/e167216/logo/256.png',
+    srcSet: 'https://images.opencollective.com/copycopterai/e167216/logo/256.png 3x',
+    name: 'copycopter.ai',
+    description: 'CopyCopter: Turn prompts into videos at ultra speed.',
+    href: 'https://copycopter.ai/',
+  },
 ];
 const BACKLINKs = [
   {