Translate the own files button tooltip

tools/chatgui/translations/chatgui_en.ts

@@ -3,6 +3,10 @@
 <TS version="2.1" language="en_US" sourcelanguage="en_US">
 <context>
     <name>ChatGui</name>
+    <message>
+        <source>My files in the selected group</source>
+        <translation>My files in the selected group</translation>
+    </message>
     <message>
         <location filename="../src/nodespage.cpp" line="+209"/>
         <source>  addresses:

tools/chatgui/translations/chatgui_ru.ts

@@ -3,6 +3,10 @@
 <TS version="2.1" language="ru_RU" sourcelanguage="en_US">
 <context>
     <name>ChatGui</name>
+    <message>
+        <source>My files in the selected group</source>
+        <translation>Мои файлы в выбранной группе</translation>
+    </message>
     <message>
         <location filename="../src/nodespage.cpp" line="+209"/>
         <source>  addresses: