styles: tweak search icons a bit

src/client/theme-default/components/VPLocalSearchBox.vue

@@ -313,7 +313,7 @@ useEventListener('popstate', (event) => {
 
       <div class="shell">
         <div class="search-bar" @pointerup="onSearchBarClick($event)">
-          <svg class="search-icon" width="20" height="20" viewBox="0 0 24 24" aria-hidden="true">
+          <svg class="search-icon" width="18" height="18" viewBox="0 0 24 24" aria-hidden="true">
             <g
               fill="none"
               stroke="currentColor"
@@ -331,7 +331,7 @@ useEventListener('popstate', (event) => {
               :title="$t('modal.backButtonTitle')"
               @click="$emit('close')"
             >
-              <svg width="20" height="20" viewBox="0 0 24 24" aria-hidden="true">
+              <svg width="18" height="18" viewBox="0 0 24 24" aria-hidden="true">
                 <path
                   fill="none"
                   stroke="currentColor"
@@ -358,7 +358,7 @@ useEventListener('popstate', (event) => {
               :title="$t('modal.displayDetails')"
               @click="showDetailedList = !showDetailedList"
             >
-              <svg width="20" height="20" viewBox="0 0 24 24" aria-hidden="true">
+              <svg width="18" height="18" viewBox="0 0 24 24" aria-hidden="true">
                 <path
                   fill="none"
                   stroke="currentColor"
@@ -375,7 +375,7 @@ useEventListener('popstate', (event) => {
               :title="$t('modal.resetButtonTitle')"
               @click="filterText = ''"
             >
-              <svg width="20" height="20" viewBox="0 0 24 24" aria-hidden="true">
+              <svg width="18" height="18" viewBox="0 0 24 24" aria-hidden="true">
                 <path
                   fill="none"
                   stroke="currentColor"
@@ -407,7 +407,7 @@ useEventListener('popstate', (event) => {
                 <span class="title-icon">#</span>
                 <span v-for="(t, index) in p.titles" :key="index" class="title">
                   <span class="text" v-html="t" />
-                  <svg width="20" height="20" viewBox="0 0 24 24">
+                  <svg width="18" height="18" viewBox="0 0 24 24">
                     <path
                       fill="none"
                       stroke="currentColor"