Intensity Legacy

Invalid date

Improved accuracy of stopwatch & timer (using date timestamps)
Added IPF points calculator
Added Kizen programs, Jeff Nippard's programs, & Layne's PH3 program
Showing previous logged in user in login screen (to prevent issues with users who use an anonymous account, logout then can't remember or access their account)
Fixed bug with timer not restarting on set completed (when repeat is unchecked)
Added functionality to remember selected tab within timer screen
Other various minor bug fixes