add submit placeholder for message textarea (#200)

* add submit placeholder for message textarea

* fix typo in french translation

* Update MessageContent.tsx

---------

Co-authored-by: Jing Hua <59118459+ztjhz@users.noreply.github.com>

public/locales/da/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Ny mappe",
   "cloneChat": "Klon Chat",
   "cloned": "Klonet",
-  "enterToSubmit": "Tryk Enter for at sende"
+  "enterToSubmit": "Tryk Enter for at sende",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/en-US/main.json

@@ -36,5 +36,6 @@
   "newFolder": "New Folder",
   "cloneChat": "Clone Chat",
   "cloned": "Cloned",
-  "enterToSubmit": "Enter to submit"
+  "enterToSubmit": "Enter to submit",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/en/main.json

@@ -36,5 +36,6 @@
   "newFolder": "New Folder",
   "cloneChat": "Clone Chat",
   "cloned": "Cloned",
-  "enterToSubmit": "Enter to submit"
+  "enterToSubmit": "Enter to submit",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/es/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Nueva Carpeta",
   "cloneChat": "Clone Chat",
   "cloned": "Cloned",
-  "enterToSubmit": "Enter to submit"
+  "enterToSubmit": "Enter to submit",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/fr/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Nouveau Dossier",
   "cloneChat": "Cloner la Conversation",
   "cloned": "Clonée",
-  "enterToSubmit": "Entrée pour soumettre"
+  "enterToSubmit": "Entrée pour soumettre",
+  "submitPlaceholder": "Saisissez un message ou sélectionnez [/] pour un prompt prédéfini..."
 }

public/locales/it/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Nuova Cartella",
   "cloneChat": "Duplica Conversazione",
   "cloned": "Duplicata",
-  "enterToSubmit": "Invio per inviare"
+  "enterToSubmit": "Invio per inviare",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/ja/main.json

@@ -36,5 +36,6 @@
   "newFolder": "新しいフォルダー",
   "cloneChat": "チャットのコピーを作成",
   "cloned": "完了しました",
-  "enterToSubmit": "Enterキーを押して送信"
+  "enterToSubmit": "Enterキーを押して送信",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/ms/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Folder Baru",
   "cloneChat": "Buat salinan perbualan ini",
   "cloned": "Dicipta",
-  "enterToSubmit": "Tekan Enter untuk hantar"
+  "enterToSubmit": "Tekan Enter untuk hantar",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/nb/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Ny mappe",
   "cloneChat": "Klone chat",
   "cloned": "Klonet",
-  "enterToSubmit": "Trykk enter for å sende"
+  "enterToSubmit": "Trykk enter for å sende",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/sv/main.json

@@ -36,5 +36,6 @@
   "newFolder": "Ny mapp",
   "cloneChat": "Klona chatt",
   "cloned": "Klonad",
-  "enterToSubmit": "Tryck på Enter för att skicka"
+  "enterToSubmit": "Tryck på Enter för att skicka",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/zh-CN/main.json

@@ -36,5 +36,6 @@
   "newFolder": "新文件夹",
   "cloneChat": "创建聊天副本",
   "cloned": "已创建副本",
-  "enterToSubmit": "按回车键提交"
+  "enterToSubmit": "按回车键提交",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/zh-HK/main.json

@@ -36,5 +36,6 @@
   "newFolder": "新資料夾",
   "cloneChat": "建立傾偈副本",
   "cloned": "建立成功",
-  "enterToSubmit": "撳 Enter 鍵提交"
+  "enterToSubmit": "撳 Enter 鍵提交",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

public/locales/zh-TW/main.json

@@ -36,5 +36,6 @@
   "newFolder": "新資料夾",
   "cloneChat": "創建聊天副本",
   "cloned": "已創建副本",
-  "enterToSubmit": "按回車鍵提交"
+  "enterToSubmit": "按回車鍵提交",
+  "submitPlaceholder": "Type a message or select [/] for a predefined prompt..."
 }

src/components/Chat/ChatContent/Message/MessageContent.tsx

@@ -439,6 +439,7 @@ const EditView = ({
             _setContent(e.target.value);
           }}
           value={_content}
+          placeholder={t('submitPlaceholder') as string}
           onKeyDown={handleKeyDown}
           rows={1}
         ></textarea>