docs: adds browser support infos in FAQ

documentation/using-spark/FAQ.mdx

@@ -246,4 +246,16 @@ import { FAQ } from '@docs/helpers/FAQ'
     </FAQ.Answer>
 
   </FAQ.Item>
+
+  <FAQ.Item>
+    <FAQ.Question
+      label="How is Spark's browser support?"
+    />
+      <FAQ.Answer>
+        Spark UI is designed for and tested on the latest stable versions of Chrome, Firefox, Edge, and Safari. It does not support any version of IE, including IE 11.
+
+        Detailed browser support is defined in our `package.json`. For a more human readable list please visit related [Browserslist page](https://browsersl.ist/#q=%3E+0.5%25+or+%3E+0.1%25+and+last+2+years%2C+not+dead%2C+not+Firefox+ESR%2C+not+and_qq+%3E+0%2C+not+and_uc+%3E+0%2C+not+and_ff+%3E0%0A).
+      </FAQ.Answer>
+
+  </FAQ.Item>
 </FAQ.Root>