Make strings for video search function translatable

Author: MaySoMusician

src/assets/locales/ja.json

@@ -79,7 +79,12 @@
       "placeholders": {
         "video_keyword": "例） 理科"
       },
-      "required": "*マークのあるものは必須項目です"
+      "required": "*マークのあるものは必須項目です",
+      "search_videos": {
+        "search": "検索する",
+        "search_result": "{source}の動画検索結果",
+        "add_to_video_urls": "参考動画URLに登録する"
+      }
     },
     "editing_visibility_dialog": {
       "title": {

src/components/EditLessonScreenInner3.vue

@@ -13,10 +13,18 @@
       :placeholders="$t('components.editing_screen.placeholder.video_keyword')"
     />
 
-    <button class="Button" @click="handleVideoSearchWord">検索する</button>
+    <button class="Button" @click="handleVideoSearchWord">
+      {{ $t('components.editing_screen.search_videos.search') }}
+    </button>
 
     <div v-if="videoSearchResult.length > 0" class="SearchResult">
-      <h3>NHK For Schoolの動画検索結果</h3>
+      <h3>
+        {{
+          $t('components.editing_screen.search_videos.search_result', {
+            source: 'NHK For School',
+          })
+        }}
+      </h3>
       <ul>
         <li v-for="(v, i) in displayLists" :key="i" class="SearchResultItem">
           <component
@@ -42,7 +50,9 @@
             class="Button"
             @click="registerVideoUrl(v.videoUrl)"
           >
-            参考動画URLに登録する
+            {{
+              $t('components.editing_screen.search_videos.add_to_video_urls')
+            }}
           </button>
         </li>
       </ul>