Add emitter.off cleanup in onBeforeUnmount for 10 components

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/DurationInput.vue

@@ -62,7 +62,7 @@
  *   fields and bounded min/max validation.
  */
 
-import { ref, computed, watch, onMounted } from "vue";
+import { ref, computed, watch, onMounted, onBeforeUnmount } from "vue";
 import emitter from "@/utils/emitter";
 
 const props = defineProps({
@@ -397,6 +397,10 @@ emitter.on("reset", () => {
   createData();
 });
 
+onBeforeUnmount(() => {
+  emitter.off("reset");
+});
+
 // mounted
 onMounted(() => {
   inputTypes.value = display.value.split("");