Add share button for public feeds

src/pages/DashboardPage.tsx

@@ -221,9 +221,26 @@ export function DashboardPage() {
     navigator.clipboard.writeText(selectedFeed.id);
     toast.success("Feed ID copied to clipboard");
   }}
-                        >
+  title="Copy Feed ID"
+>
   <Copy className="h-4 w-4" />
+</Button>
+
+{selectedFeed.isPublic && (
+  <Button
+    size="sm"
+    variant="outline"
+    className="text-xs ml-2"
+    onClick={() => {
+      const shareUrl = `${window.location.origin}/publicfeed/${selectedFeed.id}`;
+      navigator.clipboard.writeText(shareUrl);
+      toast.success("Public share link copied");
+    }}
+  >
+    Share
   </Button>
+)}
+
                       </span>
                     </>
                   ) : (