fix: lowercase

src/AppHeijunka.vue

@@ -152,7 +152,8 @@ const createdAt = new Date('2026-01-01').toLocaleDateString(undefined, {
         :disabled="!heijunkaStore.validatedPlanning"
       >
         next hour
-        <!-- <svg
+        <!--
+        <svg
           xmlns="http://www.w3.org/2000/svg"
           width="24"
           height="24"
@@ -166,7 +167,8 @@ const createdAt = new Date('2026-01-01').toLocaleDateString(undefined, {
         >
           <path stroke="none" d="M0 0h24v24H0z" fill="none" />
           <path d="M7 4v16l13 -8z" />
-          </svg> -->
+        </svg>
+        -->
       </button>
       <button class="button-outline" @click="heijunkaStore.reset()">
         reset
@@ -212,7 +214,7 @@ const createdAt = new Date('2026-01-01').toLocaleDateString(undefined, {
         batch
       </button>
       <button class="button-outline" @click="heijunkaStore.simulateMonth()">
-        Simulate a month
+        simulate a month
       </button>
     </section>
     <div>