[client] Move the peer send actions into a footer behind a single Send menu

The two send buttons at the top of the peer details panel become one
Send button in a bottom bar, matching the Resources tab, with a menu
offering File and Clipboard. The clipboard entry is read on open and
disabled when empty, mirroring the Files page picker, and Escape closes
only the menu instead of the whole panel.

client/ui/i18n/locales/de/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "Zwischenablage ist leer"
     },
+    "peers.details.send": {
+        "message": "Senden"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Datei…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Zwischenablage"
+    },
     "settings.tabs.fileSharing": {
         "message": "Dateifreigabe"
     },

client/ui/i18n/locales/en/common.json

@@ -1991,6 +1991,18 @@
         "message": "Clipboard is empty",
         "description": "Error when the clipboard has no text."
     },
+    "peers.details.send": {
+        "message": "Send",
+        "description": "Label of the single send button at the bottom of the peer details panel; opens the what-to-send menu. Keep short."
+    },
+    "peers.details.sendMenu.file": {
+        "message": "File…",
+        "description": "Send menu entry opening the file picker. Keep short."
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Clipboard",
+        "description": "Send menu entry sending the clipboard text. Keep short."
+    },
     "settings.tabs.fileSharing": {
         "message": "File sharing",
         "description": "Settings tab for file transfer policy."

client/ui/i18n/locales/es/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "El portapapeles está vacío"
     },
+    "peers.details.send": {
+        "message": "Enviar"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Archivo…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Portapapeles"
+    },
     "settings.tabs.fileSharing": {
         "message": "Compartir archivos"
     },

client/ui/i18n/locales/fr/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "Le presse-papiers est vide"
     },
+    "peers.details.send": {
+        "message": "Envoyer"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Fichier…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Presse-papiers"
+    },
     "settings.tabs.fileSharing": {
         "message": "Partage de fichiers"
     },

client/ui/i18n/locales/hu/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "A vágólap üres"
     },
+    "peers.details.send": {
+        "message": "Küldés"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Fájl…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Vágólap"
+    },
     "settings.tabs.fileSharing": {
         "message": "Fájlmegosztás"
     },

client/ui/i18n/locales/it/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "Gli appunti sono vuoti"
     },
+    "peers.details.send": {
+        "message": "Invia"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "File…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Appunti"
+    },
     "settings.tabs.fileSharing": {
         "message": "Condivisione file"
     },

client/ui/i18n/locales/ja/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "クリップボードは空です"
     },
+    "peers.details.send": {
+        "message": "送信"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "ファイル…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "クリップボード"
+    },
     "settings.tabs.fileSharing": {
         "message": "ファイル共有"
     },

client/ui/i18n/locales/pt/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "A área de transferência está vazia"
     },
+    "peers.details.send": {
+        "message": "Enviar"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Arquivo…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Área de transferência"
+    },
     "settings.tabs.fileSharing": {
         "message": "Compartilhamento de arquivos"
     },

client/ui/i18n/locales/ru/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "Буфер обмена пуст"
     },
+    "peers.details.send": {
+        "message": "Отправить"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Файл…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Буфер обмена"
+    },
     "settings.tabs.fileSharing": {
         "message": "Обмен файлами"
     },

client/ui/i18n/locales/uk/common.json

@@ -1493,6 +1493,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "Буфер обміну порожній"
     },
+    "peers.details.send": {
+        "message": "Надіслати"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "Файл…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "Буфер обміну"
+    },
     "settings.tabs.fileSharing": {
         "message": "Обмін файлами"
     },

client/ui/i18n/locales/zh-CN/common.json

@@ -1471,6 +1471,15 @@
     "peers.details.sendClipboard.empty": {
         "message": "剪贴板为空"
     },
+    "peers.details.send": {
+        "message": "发送"
+    },
+    "peers.details.sendMenu.file": {
+        "message": "文件…"
+    },
+    "peers.details.sendMenu.clipboard": {
+        "message": "剪贴板"
+    },
     "settings.tabs.fileSharing": {
         "message": "文件共享"
     },