Some icons and basic tweaks for the visuals

src/lib/components/ScheduleSection.svelte

@@ -1,3 +1,7 @@
+<script lang="ts">
+    import ExternalLinkIcon from './Icon/ExternalLink.svelte';
+</script>
+
 <section
     id="schedule"
     class="section schedule-section"
@@ -8,12 +12,13 @@
         <p class="schedule-text">Ready to discuss your project?</p>
         <a
             href="https://cal.mifi.ventures/the-mifi/30min?utm_source=website&utm_medium=cta&utm_campaign=schedule_call&utm_medium=schedule_section_cta"
-            class="btn btn-primary"
+            class="btn btn-primary icon-button"
             target="_blank"
             rel="noopener noreferrer"
             aria-label="Schedule a 30-minute intro call (opens in new tab)"
         >
             Schedule a 30-minute intro call
+            <ExternalLinkIcon aria-label="Opens in new tab" size="17" />
         </a>
     </div>
 </section>
@@ -32,4 +37,8 @@
         line-height: var(--line-height-relaxed);
         max-width: 100%;
     }
+
+    .btn {
+        margin: 0 auto;
+    }
 </style>