symbols/ara: put the vertical bar back on Shift+Backslash

Commit 83982bd6 from four years ago replaced the vertical bar on the second level of the BKSL key with an ellipsis, leaving the vertical bar accessible only via the LSGT key. However, most Arabic keyboards don't have an LSGT key, meaning that the vertical bar became untypable. Fix this by restoring the vertical bar to the second level of the BKSL key, and moving the ellipsis (when possible) to the second level of the LSGT key, displacing the almost useless brokenbar symbol.