Cocoa: Fix unresponsive cursor after cursor warp

This is a companion to 157ebb80aa and
fixes the same issue for calls to glfwSetCursorPos.

Related to #1962

README.md

@@ -206,6 +206,8 @@ information on what to include when reporting a bug.
  - [Cocoa] Bugfix: The install name of the installed dylib was relative (#1504)
  - [Cocoa] Bugfix: The MoltenVK layer contents scale was updated only after
    related events were emitted
+ - [Cocoa] Bugfix: Moving the cursor programmatically would freeze it for
+   a fraction of a second (#1962)
  - [X11] Bugfix: The CMake files did not check for the XInput headers (#1480)
  - [X11] Bugfix: Key names were not updated when the keyboard layout changed
    (#1462,#1528)

src/cocoa_window.m

@@ -117,7 +117,8 @@ static void updateCursorMode(_GLFWwindow* window)
         _glfwPlatformSetCursorPos(window,
                                   _glfw.ns.restoreCursorPosX,
                                   _glfw.ns.restoreCursorPosY);
-        CGAssociateMouseAndMouseCursorPosition(true);
+        // NOTE: The matching CGAssociateMouseAndMouseCursorPosition call is
+        //       made in _glfwPlatformSetCursorPos as part of a workaround
     }
 
     if (cursorInContentArea(window))
@@ -1518,6 +1519,11 @@ void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
                                               _glfwTransformYNS(globalPoint.y)));
     }
 
+    // HACK: Calling this right after setting the cursor position prevents macOS
+    //       from freezing the cursor for a fraction of a second afterwards
+    if (window->cursorMode != GLFW_CURSOR_DISABLED)
+        CGAssociateMouseAndMouseCursorPosition(true);
+
     } // autoreleasepool
 }