style: remove background color from search bar container

src/locales/en-US.ts

@@ -2008,7 +2008,7 @@ export default {
     },
     searchBar: {
       search: 'Search',
-      searchPlaceholder: 'Search movies and TV shows...',
+      searchPlaceholder: 'Search movies, TV shows and more...',
       recentSearches: 'Recent Searches',
       noRecentSearches: 'No recent search history',
       functions: 'Functions',

src/locales/zh-CN.ts

@@ -1980,7 +1980,7 @@ export default {
     },
     searchBar: {
       search: '搜索',
-      searchPlaceholder: '搜索电影和剧集...',
+      searchPlaceholder: '搜索电影、剧集以及更多...',
       recentSearches: '最近搜索',
       noRecentSearches: '没有最近搜索记录',
       functions: '功能',

src/locales/zh-TW.ts

@@ -1981,7 +1981,7 @@ export default {
     },
     searchBar: {
       search: '搜索',
-      searchPlaceholder: '搜索電影和劇集...',
+      searchPlaceholder: '搜索電影、劇集以及更多...',
       recentSearches: '最近搜索',
       noRecentSearches: '沒有最近搜索記錄',
       functions: '功能',