(feat): Fixed adding emails to subscribers list

static/js/main.js

@@ -1,16 +1,23 @@
 document.getElementById("notify-button").addEventListener("click", async () => {
   const emailInput = document.getElementById("email-input");
-    const email = emailInput.value;
+  const email = emailInput.value.trim();
 
   if (email) {
+    try {
       const response = await fetch("/subscribe", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ email }),
       });
 
+      // Check if response is OK, then parse JSON
       const result = await response.json();
+      console.log("Server response:", result);
       alert(result.message || result.error);
+    } catch (error) {
+      console.error("Error during subscribe fetch:", error);
+      alert("There was an error during subscription. Please try again later.");
+    }
     emailInput.value = ""; // Clear input field
   } else {
     alert("Please enter a valid email.");