refs #1055 Add a tray menu to open window

src/config/locales/de/translation.json

@@ -8,6 +8,7 @@
       "hide": "Whalebird verstecken",
       "hide_others": "Andere verstecken",
       "show_all": "Alle anzeigen",
+      "open": "Open Window",
       "quit": "Beenden"
     },
     "toot": {

src/config/locales/en/translation.json

@@ -8,6 +8,7 @@
       "hide": "Hide Whalebird",
       "hide_others": "Hide Others",
       "show_all": "Show All",
+      "open": "Open Window",
       "quit": "Quit"
     },
     "toot": {

src/config/locales/fr/translation.json

@@ -8,6 +8,7 @@
       "hide": "Cacher Whalebird",
       "hide_others": "Cacher les autres",
       "show_all": "Tout afficher",
+      "open": "Ouvrir la fenêtre",
       "quit": "Quitter"
     },
     "toot": {

src/config/locales/it/translation.json

@@ -8,6 +8,7 @@
       "hide": "Nascondi Whalebird",
       "hide_others": "Nascondi Altri",
       "show_all": "Mostra Tutto",
+      "open": "Apri Finestra",
       "quit": "Esci"
     },
     "toot": {

src/config/locales/ja/translation.json

@@ -8,6 +8,7 @@
       "hide": "Whalebirdを隠す",
       "hide_others": "ほかを隠す",
       "show_all": "すべてを表示",
+      "open": "ウィンドウを開く",
       "quit": "終了"
     },
     "toot": {

src/config/locales/ko/translation.json

@@ -8,6 +8,7 @@
       "hide": "Whalebird 숨기기",
       "hide_others": "나머지 숨기기",
       "show_all": "모두 보이기",
+      "open": "창 열기",
       "quit": "나가기"
     },
     "toot": {

src/config/locales/pl/translation.json

@@ -8,6 +8,7 @@
       "hide": "Ukryj Whalebird",
       "hide_others": "Ukryj pozostałe",
       "show_all": "Pokaż wszystkie",
+      "open": "Open Window",
       "quit": "Wyjdź"
     },
     "toot": {

src/config/locales/zh_cn/translation.json

@@ -8,6 +8,7 @@
       "hide": "隐藏 Whalebird",
       "hide_others": "隐藏其它窗口",
       "show_all": "全部显示",
+      "open": "打开窗口",
       "quit": "退出"
     },
     "toot": {

src/main/index.ts

@@ -1291,6 +1291,16 @@ const ApplicationMenu = (accountsChange: Array<MenuItemConstructorOptions>, i18n
 const TrayMenu = (accountsChange: Array<MenuItemConstructorOptions>, i18n: i18n.i18n): Menu => {
   const template: Array<MenuItemConstructorOptions> = [
     ...accountsChange,
+    {
+      label: i18n.t('main_menu.application.open'),
+      click: async () => {
+        if (mainWindow) {
+          mainWindow.show()
+        } else {
+          await createWindow()
+        }
+      }
+    },
     {
       label: i18n.t('main_menu.application.quit'),
       click: () => {