[website] Add Wispr Flow as gold sponsor (#47003)

Signed-off-by: Raffaella Luzi Stoutland <136349774+rluzists1@users.noreply.github.com>
Co-authored-by: Danail H. <hadjiatanasov@gmail.com>

Author: rluzists1

README.md

@@ -82,6 +82,14 @@ via [Open Collective](https://opencollective.com/mui-org) or via [Patreon](http
    
   <a href="https://www.dialmycalls.com/?utm_source=mui.com&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>
   &nbsp;
+  <a href="https://ref.wisprflow.ai/ZSPYrru?utm_source=mui.com&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank">
+   <picture>
+      <source media="(prefers-color-scheme: dark)" srcset="https://mui.com/static/sponsors/wispr-square-dark.svg">
+      <source media="(prefers-color-scheme: light)" srcset="https://mui.com/static/sponsors/wispr-square-light.svg">
+      <img height="96" width="96" src="https://mui.com/static/sponsors/wispr-square-light.svg" alt="wisprflow" title="AI Dictation: from speech to clear, polished text." loading="lazy" />
+  </picture>
+  </a>
+  &nbsp;
 </p>
 
 <p>

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

@@ -31,6 +31,14 @@ 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="tidelift.com" href="https://tidelift.com/?utm_source=npm-material-ui&utm_medium=referral&utm_campaign=homepage" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px;"><img height="96" width="96" src="https://avatars.githubusercontent.com/u/30204434?s=96" srcset="https://avatars.githubusercontent.com/u/30204434?s=288 3x" alt="tidelift.com" title="Tidelift: Enterprise-ready open-source software." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="docs-backers" data-ga-event-label="text-em-all.com" href="https://www.text-em-all.com/?utm_source=mui.com&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px;"><img src="https://avatars.githubusercontent.com/u/1262264?s=96" srcset="https://avatars.githubusercontent.com/u/1262264?s=288 3x" alt="text-em-all.com" title="Text-em-all: Mass text messaging and automated calling." height="96" width="96" 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.com&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="wisprflow.ai" href="https://ref.wisprflow.ai/ZSPYrru?utm_source=mui.com&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" class="remove-link-arrow" style="margin-right: 16px;">
+    <span class="only-light-mode">
+      <img height="96" width="96" src="/static/sponsors/wispr-square-light.svg" srcset="/static/sponsors/wispr-square-light.svg x3" alt="wisprflow" title="AI Dictation: from speech to clear, polished text." loading="lazy">
+    </span>
+    <span class="only-dark-mode">
+      <img height="96" width="96" src="/static/sponsors/wispr-square-dark.svg" srcset="/static/sponsors/wispr-square-dark.svg x3" alt="wisprflow" title="AI Dictation: from speech to clear, polished text." loading="lazy">
+    </span>
+  </a>
 </p>
 
 <!--

docs/public/static/sponsors/wispr-square-dark.svg

@@ -32,6 +32,14 @@ const GOLDs = [
     description: 'Send text messages, calls, and emails.',
     href: 'https://www.dialmycalls.com/?utm_source=mui.com&utm_medium=referral&utm_content=homepage',
   },
+  {
+    src: '/static/sponsors/wispr-square-light.svg',
+    srcSet: '/static/sponsors/wispr-square-light.svg 3x',
+    srcDark: '/static/sponsors/wispr-square-dark.svg',
+    name: 'Wispr Flow',
+    description: 'AI Dictation: from speech to clear, polished text.',
+    href: 'https://ref.wisprflow.ai/ZSPYrru?utm_source=mui.com&utm_medium=referral&utm_content=homepage',
+  },
 ];
 
 const BACKLINKs = [