Clicks are handled really badly when refocusing retro arch menu.

When using a mouse in retro arch, you can hover over items in the menu to move the currently highlighted item. However, if you hover over something that isn't an item it stays on the last item you hovered.

There isn't really anything worn with this with a controller because it always needs a highlighted option to navigate. However with a mouse, a left click will always select the last hovered item causing weird issues with click registration.

This means refocusing retro arch causes you to unexpectedly click whatever is selected, even though it may not be under the cursor or even anywhere near it, it just uses the last hovered.

I think a simple fix would be to include a flag that is set when the cursor is actually over something, that the mouse can use when deciding whether to accept the left click, and something the controller can ignore.

Start by locating RetroArch's menu mouse hover and left-click handling, then reproduce the refocusing behavior described in the issue. Done means clicking when the cursor is not over a menu item no longer selects the last hovered item, while controller navigation still works.