[feat] chinese selection

src/lib/Others/WelcomeRisu.svelte

@@ -31,6 +31,11 @@
                     $DataBase.language='ko'
                     step = 1
                 }}>• 한국어</button>
+                <button class="hover:text-green-500 transition-colors" on:click={() => {
+                    changeLanguage('cn')
+                    $DataBase.language='cn'
+                    step = 1
+                }}>• 中文</button>
             </div>
 
         {:else if step === 1}

src/lib/Setting/Pages/LanguageSettings.svelte

@@ -14,7 +14,8 @@ import { changeLanguage, language } from "src/lang";
     langChanged = true
 }}>
     <option value="en" class="bg-darkbg appearance-none">English</option>
-    <option value="ko" class="bg-darkbg appearance-none">Korean</option>
+    <option value="ko" class="bg-darkbg appearance-none">한국어</option>
+    <option value="cn" class="bg-darkbg appearance-none">中文</option>
 </select>
 {#if langChanged}
     <span class="bg-red-500 text-sm">Close the settings to take effect</span>