fix(list-monitor): wire touch events to resize handle

[Chessing234]

Bug

List monitors cannot be resized on touchscreen devices. The resize handle (=) registers only onMouseDown / mousemove / mouseup, so dragging on a phone or tablet has no effect.

Fixes #9821.

Root cause

handleResizeMouseDown in src/containers/list-monitor.jsx already uses getEventXY from src/lib/touch-utils, which normalises both MouseEvent and TouchEvent coordinates. The logic is touch-aware; the events were simply never registered.

src/components/monitor/list-monitor.jsx passes onResizeMouseDown to onMouseDown only — there is no onTouchStart binding on the resize <div>.

Fix

Two files, five lines added:

src/components/monitor/list-monitor.jsx — add onTouchStart alongside onMouseDown on the resize div so the handler fires on touch devices.

src/containers/list-monitor.jsx — register touchmove / touchend alongside mousemove / mouseup when the drag starts, and remove them symmetrically in the cleanup closure.

No coordinate-extraction changes are needed because getEventXY already handles both event types.

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