[docs] Fix Doxygen warnings, add CI docs lint job (#3639)

The CI docs lint build is configured to fail on Doxygen warnings.

wpilibNewCommands/src/main/native/include/frc2/command/button/Button.h

@@ -25,7 +25,7 @@ class Button : public Trigger {
   /**
    * Create a new button that is pressed when the given condition is true.
    *
-   * @param isActive Whether the button is pressed.
+   * @param isPressed Whether the button is pressed.
    */
   explicit Button(std::function<bool()> isPressed);