Changed compression value of save throttle for timeline zoom.
Original intent was to prevent the config saving from slowing down zoom performance. While it worked, 5000MS (5 seconds) of required inactivity made zoom saving unpredictable. A low value (now 100ms) will prevent the configuration writing process from slowing down zoom operation while preserving user settings even after a reboot within 5 seconds of last zoom operation. BUG:437025