switch to random if empty onblur

packages/fakeyou.com/src/v2/view/pages/weight/inference_panels/SdInferencePanel.tsx

@@ -138,7 +138,6 @@ export default function SdInferencePanel(props: SdInferencePanelProps) {
     } else {
       seedNumberSet(randomSeed.toString());
       seedSet(value);
-      seedNumberSet("");
     }
   };
 
@@ -147,6 +146,12 @@ export default function SdInferencePanel(props: SdInferencePanelProps) {
     seedSet("custom");
   };
 
+  const handleBlur = () => {
+    if (seedNumber === "") {
+      seedSet("random");
+    }
+  };
+
   return (
     <Panel padding={true}>
       <h4 className="fw-semibold mb-4">Generate an Image</h4>
@@ -200,6 +205,7 @@ export default function SdInferencePanel(props: SdInferencePanelProps) {
                   value={seedNumber}
                   onChange={handleSeedNumberChange}
                   type="number"
+                  onBlur={handleBlur}
                 />
               </div>
             </div>