config: Order battery_id alphabetically

Signed-off-by: AnErrupTion <anerruption@disroot.org>

src/config/Config.zig

@@ -13,10 +13,10 @@ animation_frame_delay: u16 = 5,
 animation_timeout_sec: u12 = 0,
 asterisk: ?u32 = '*',
 auth_fails: u64 = 10,
-battery_id: ?[]const u8 = null,
 auto_login_service: [:0]const u8 = "ly-autologin",
 auto_login_session: ?[]const u8 = null,
 auto_login_user: ?[]const u8 = null,
+battery_id: ?[]const u8 = null,
 bg: u32 = 0x00000000,
 bigclock: Bigclock = .none,
 bigclock_12hr: bool = false,