InputDialog: insert TitleBar (#8695)

into InputDialog, MultiInputDialog, OpenWithDialog, LoginDialog widgets.

frontend/ui/widget/inputtext.lua

@@ -402,6 +402,8 @@ function InputText:initTextBox(text, char_added)
         self._password_toggle = FrameContainer:new{
             bordersize = 0,
             padding = self.padding,
+            padding_top = 0,
+            padding_bottom = 0,
             margin = self.margin,
             self._check_button,
         }