Translate code Copy confirmation into Russian

tools/chatgui/translations/chatgui_en.ts

@@ -1020,6 +1020,7 @@ Buffer drops: %7 · Underruns: %8</translation>
         <source>Copy</source>
         <translation>Copy</translation>
     </message>
+    <message><source>Copied</source><translation>Copied</translation></message>
     <message>
         <location filename="../src/radiopanel.cpp" line="+73"/>
         <source>Core unavailable</source>

tools/chatgui/translations/chatgui_ru.ts

@@ -1024,6 +1024,7 @@ Buffer drops: %7 · Underruns: %8</source>
         <source>Copy</source>
         <translation>Копировать</translation>
     </message>
+    <message><source>Copied</source><translation>Скопировано</translation></message>
     <message>
         <location filename="../src/radiopanel.cpp" line="+73"/>
         <source>Core unavailable</source>