[Feature]: Mobile: reorder and hide terminal key bar buttons #28701

The iOS terminal key bar has a fixed order (terminalToolbarActions in ThreadTerminalRouteScreen.tsx). On a phone only the first few keys fit, so the order decides which keys work without a swipe. Please add a setting to reorder the keys by drag, show or hide each one, and reset to the default.

Related, each a key stuck off-screen in the fixed order: #24694 (paste hidden, open), #25618 (no long-press Paste, open), #16299 and #21398 (arrows moved to the front), #6394 and #6968 (mobile paste request).