Add firmware boot image

Author: OCDkirby

src/App.vue

@@ -177,6 +177,11 @@ const darkThemeOverrides: GlobalThemeOverrides = {
               src="/assets/sonicmania.png"
               alt="Sonic Mania running on RPCSX"
             >
+            <img
+              class="carousel-img"
+              src="/assets/firmware.png"
+              alt="PS4 firmware running on RPCSX"
+            >
             <img
               class="carousel-img"
               src="/assets/we-are-doomed.png"