release/2020-08-25: Arlo Two-Factor support, More filtering for false alerts on stationary cars, and other small fixes.

[CamectArup]

release/2020-08-25: 

New Features:

    - More algorithm adjustments to reduce stationary cars detected as moving. 

    - Two-factor authentication for Arlo (see note below). All Arlo users will need this later this month.

Other Improvements:

    - Improve interactive performance when deletions of older footage are in progress

    - Improve logic that could declare the system overloaded after just a short cpu spike

    - Make it easier to eject a drive from the storage tab

    - UI Tweaks:

           - Make it easier to drag windows on phones

           - Make it clearer when "manage ratings" is open vs closed

           - Fix bugs in how time limits are displayed in various locations.

If you already have Arlo cameras working on Camect and then enable two-factor on Arlo, you'll find that all Arlo cameras show "incorrect username or password" after you restart Camect. 

To get them working again (or just to be proactive before this happens): 

   1) Disable all Arlo cameras using the slider at the top left of each camera's title bar. (If your cameras are still working, use "disable camera" from the camera settings.) 

   2) Restart Camect (home settings > show advanced settings > restart)

      Allow enough time for Camect to be fully done restarting before continuing. Give it 10 minutes to be safe. 

   3) Sign in to Arlo:

        home settings > devices > add camera, set the type to "Arlo", and click "Add" to sign in

        You should receive the two-factor PIN prompt after entering your username and password. 

        Add back your cameras.