message: Fix copy in insert mode
diff: @@ -1551,7 +1551,7 @@ class CommandCmdVInSearchMode extends BaseCommand {
  */
  @RegisterAction
  class CommandOverrideCopy extends BaseCommand {
  - modes = [ModeName.Visual, ModeName.VisualLine, ModeName.VisualBlock];
  + modes = [ModeName.Visual, ModeName.VisualLine, ModeName.VisualBlock, ModeName.Insert];
  keys = ["copy"]; // A special key - see ModeHandler
  runsOnceForEveryCursor() { return false; }
  