chore: Inbox view enhancements

app/javascript/shared/mixins/resizeListenerMixin.js

@@ -0,0 +1,25 @@
+export default {
+  mounted() {
+    window.addEventListener('resize', this.handleResize);
+  },
+  beforeDestroy() {
+    window.removeEventListener('resize', this.onResizeHandler);
+  },
+  methods: {
+    // Resize event for layout changes
+    onResizeHandler() {
+      let throttled = false;
+      const delay = 150;
+
+      if (throttled) {
+        return;
+      }
+      throttled = true;
+
+      setTimeout(() => {
+        throttled = false;
+        this.handleResize();
+      }, delay);
+    },
+  },
+};