fix: missing translation strings

src/components/OptionList.vue

@@ -60,7 +60,7 @@ prf.reload();
     <AimeOptions />
     <MiscOptions />
     <OptionCategory
-        title="Extensions"
+        :title="t('cfg.extensions.title')"
         v-if="prf.current?.meta.game === 'chunithm'"
     >
         <OptionRow :title="t('cfg.extensions.saekawa')">

src/components/StartButton.vue

@@ -203,7 +203,7 @@ const tryStart = () => {
         v-tooltip="disabledTooltip"
         :disabled="disabledTooltip !== null"
         icon="pi pi-play"
-        label="START"
+        :label="t('start.button.start')"
         aria-label="start"
         size="small"
         class="m-2.5"