Allow copying the context menu title by long-pressing the header

[MiMoHo]

Summary

Place names and OSM note texts shown as the context menu title are often needed elsewhere — a typical case is copying an OSM note text into a translator before answering it, since notes are frequently written in the local language. Info and description rows of the menu already support copy on long-press; the title did not.

Implementation

A plain OnLongClickListener on the title TextView never receives events because the menu header consumes all touches for the slide gestures (InterceptorLinearLayout + slideTouchListener) — verified on an emulator, where the long-press fell through to the map and selected a new point. The long-press is therefore detected by a GestureDetector inside the existing slideTouchListener, in the same header-area branch that already handles tap-to-expand, and copies menu.getTitleStr() via the existing ShareMenu.copyToClipboardWithToast(). Movement cancels the long-press through the detector's built-in touch-slop handling, so the slide gestures are unaffected.

Testing

Verified on an Android 15 (API 35) emulator with a debug build of this branch:

• long-press on the title → toast "Copied to clipboard: Testbakery Three" and the Android system clipboard overlay confirming the copied text;
• single tap on the header still expands the menu to half screen;
• dragging the header still slides the menu up/down.

🤖 Generated with Claude Code — model: Claude Fable 5, reasoning effort: xhigh