Controls Config Menu UI issues

The F1 menu does not call out the ability to double click on the control's label, its primary binding, nor its secondary binding in order to change the bindings of that control.

When in bind mode, a small flashing, nearly invisible "?" appears above the page tabs in the lower left. This announces the button that you press but doesn't explicitly tell you that you're in bind mode nor what to do.

These are both user experience issues that have been around since vanilla and are tripping people up again as Controls4/5 is forcing the mouse users to bind their controls, which is especially problematic to people who have never rebound a control before or have since forgotten how to do so since they've always used the defaults.

...I can't just easily address either of these UI issues because the proper way of doing so would involve adding a new XSTR for localization (I can't overwrite old XSTR data, since vanilla data will still have it). I can do the English localization in code just fine, but once any of the localization strings from the VP's are loaded that all becomes moot.