Remove unused imports and variables (S1128, S1481, S1854)

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

src/components/AppNavbar.vue

@@ -100,8 +100,6 @@ import { useAllMapDataStore } from "@/stores/allMapData";
 import { useConformanceStore } from "@/stores/conformance";
 import { usePageAdminStore } from "@/stores/pageAdmin";
 import { useMapCompareStore } from "@/stores/mapCompareStore";
-import IconSearch from "@/components/icons/IconSearch.vue";
-import IconSetting from "@/components/icons/IconSetting.vue";
 import {
   saveFilter,
   savedSuccessfully,

src/components/DurationInput.vue

@@ -195,7 +195,6 @@ function onFocus(event) {
  * @param {Event} event - The change event from a duration input.
  */
 function onChange(event) {
-  const baseInputValue = event.target.value;
   let decoratedInputValue;
   if (isNaN(event.target.value)) {
     event.target.value = "00";