Subscribing

Implemented showing subscriptions on profile page, and allowing subscribe and unsubscribe on the lab page'

src/components/LabPopup.css

+.popup-overlay {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.7);
+    display: flex;
+    justify-content: center;
+    align-items: center;
+}
+
+.popup-content {
+    background: #fff;
+    padding: 20px;
+    border-radius: 8px;
+    width: 90%;
+    max-width: 600px;
+    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+    position: relative;
+}
+
+.popup-content h2 {
+    margin-top: 0;
+}
+
+.popup-content .close {
+    position: absolute;
+    top: 10px;
+    right: 10px;
+    font-size: 24px;
+    cursor: pointer;
+}
+
+.primary-button {
+    background-color: #007bff;
+    color: white;
+    padding: 10px 20px;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    margin: 4px 6px 0px;
+}
+
+.primary-button:hover {
+    background-color: #0056b3;
+}