make string translatable in filetranfer context menu. Fixes #7740

data/gui/filetransfers.ui

@@ -186,7 +186,7 @@
     </child>
     <child>
       <object class="GtkImageMenuItem" id="continue_menuitem">
-        <property name="label">_Continue</property>
+        <property name="label" translatable="yes">_Continue</property>
         <property name="no_show_all">True</property>
         <property name="use_underline">True</property>
         <property name="use_stock">True</property>
@@ -196,7 +196,7 @@
     </child>
     <child>
       <object class="GtkImageMenuItem" id="pause_menuitem">
-        <property name="label">_Pause</property>
+        <property name="label" translatable="yes">_Pause</property>
         <property name="use_underline">True</property>
         <property name="use_stock">True</property>
         <property name="accel_group">accelgroup1</property>
@@ -219,7 +219,7 @@
     </child>
     <child>
       <object class="GtkImageMenuItem" id="open_folder_menuitem">
-        <property name="label">_Open Containing Folder</property>
+        <property name="label" translatable="yes">_Open Containing Folder</property>
         <property name="use_underline">True</property>
         <property name="use_stock">True</property>
         <property name="accel_group">accelgroup1</property>