Detecting tab click with mousePressed instead of mouseClicked.

[AndreiKud]

Hello! Changed MouseAdapter callback from mouseClicked to mousePressed. Reasons:

1. MouseEvent.MOUSE_CLICKED is only sent when there is no movement between press and release events, not even a single pixel. Maybe my mouse is too sensitive, but it is challenging to close or select a tab without significally slowing down the mouse or fully stopping it.
2. BasicTabbedPaneUI.java itself handles tab selecting within mousePressed (line 2611). As a result, the behavior differs when clicking at the tab's center compared (our handler) to clicking at its edges (parent's handler).

[skylot]

@AndreiKud thanks 👍