~/.config/awesome/rc.lua: Fix chromium shortcuts and have a locking shortcut.

.config/awesome/rc.lua

              end),
    awful.key({ modkey }, "l", function() os.execute("xkbswap") end),
    awful.key({ modkey }, "b", function() os.execute("chromium") end),
    awful.key({ modkey, "Shift" }, "b", function() os.execute("chromium --incognito") end)
    awful.key({ modkey, "Shift" }, "l", function() os.execute("xlock -mode blank") end),
    awful.key({ modkey }, "b", function() awful.util.spawn("chromium", false) end),
    awful.key({ modkey, "Shift" }, "b", function() awful.util.spawn("chromium --incognito", false) end)
)
clientkeys = awful.util.table.join(