submit button hover color updated

app.py

@@ -99,7 +99,7 @@ img.gr-sample-image:hover, video.gr-sample-video:hover {
     top: 0px;
     padding: 0px;
     cursor: pointer !important; 
-    background: none rgb(37, 56, 133) !important;
+    background: none rgb(66, 133, 244) !important;
     border: none !important;
     text-align: center !important;
     font-size: 14px !important;