android: reorder from the sheet — a playlist row up, down or to the top; a queue row up or down

Without a drag: a playlist row's sheet moves it up, down or to the top and
persists the whole order in one call (playlist_set_order, as the desktop's
drop does); a queue row's sheet moves it up or down, never past the track
playing. Also src-tauri/android/ship.sh — one round end to end: the mock
walk, the embedded build installed, the phone walk, the commit, each step
gated on the one before.

src/mobile/player.svelte.js

@@ -412,6 +412,15 @@ export function removeFromQueue(i) {
     armPreload();
     writeSession();
 }
+/** An upcoming row one place up or down, never past the current track. */
+export function moveInQueue(i, dir) {
+    const j = i + (dir === "up" ? -1 : 1);
+    if (i <= player.qi || j <= player.qi || i >= player.queue.length || j >= player.queue.length) return;
+    const [row] = player.queue.splice(i, 1);
+    player.queue.splice(j, 0, row);
+    armPreload();
+    writeSession();
+}
 /** Pull an upcoming row up to right after the current track. */
 export function moveToNext(i) {
     if (i <= player.qi + 1 || i >= player.queue.length) return;