add translation for buttons: left pane toggle

src/public/app/widgets/buttons/left_pane_toggle.js

@@ -1,6 +1,7 @@
 import options from "../../services/options.js";
 import splitService from "../../services/resizer.js";
 import CommandButtonWidget from "./command_button.js";
+import { t } from "../../services/i18n.js";
 
 export default class LeftPaneToggleWidget extends CommandButtonWidget {
     constructor() {
@@ -13,8 +14,8 @@ export default class LeftPaneToggleWidget extends CommandButtonWidget {
             : "bx-chevrons-right";
 
         this.settings.title = () => options.is('leftPaneVisible')
-            ? "Hide panel"
-            : "Open panel";
+            ? t("left_pane_toggle.hide_panel")
+            : t("left_pane_toggle.show_panel");
 
         this.settings.command = () => options.is('leftPaneVisible')
             ? "hideLeftPane"

src/public/translations/cn/translation.json

@@ -584,5 +584,9 @@
         "show_help": "显示帮助",
         "about": "关于 TriliumNext 笔记",
         "logout": "登出"
+    },
+    "left_pane_toggle": {
+        "hide_panel": "隐藏面板",
+        "show_panel": "显示面板"
     }
 }

src/public/translations/en/translation.json

@@ -585,5 +585,9 @@
         "show_help": "Show Help",
         "about": "About TriliumNext Notes",
         "logout": "Logout"
+    },
+    "left_pane_toggle": {
+        "hide_panel": "Hide panel",
+        "open_panel": "Open panel"
     }
 }