WebUI: the Close button sits under the status bar on Android 15 (edge to edge) #169

Seen on the lab's TECNO KM4 (Android 15, v2.04, landscape 1600×720): the full-screen WebUI from #160 draws from the top edge of the screen, and the status bar ([0,0][1600,42]) covers about two thirds of the Close button ([0,0][106,65]). Android 15 runs apps that target SDK 35+ edge to edge, and the WebUI window does not apply the system bar insets.

Everything else works there: the keyboard shows for the page's fields, the page scrolls the focused field above it, typed text stays when the focus moves to another field, Back first hides the keyboard and then closes WebUI.

Fix: pad the WebUI content by the system bars' insets (setOnApplyWindowInsetsListener / WindowInsets), or opt the dialog window out of edge to edge.