Version 2.0.0-RC4

Updated components to latest versions
Changed object model to be compatible with a wide range of null values (required for Duet 3)
Changed file info description in the object model 'job' namespace to FileInfo class
Bed+Chamber standby temperatures are now displayed (if available)
Added tab support to the text editor (Shift+Tab is still reserved for keyboard navigation)
Clicking on a code notification navigates no longer to the Console page
Minor other changes
Bug fix: Responses of input buttons were not displayed
Bug fix: Temperature chart did not update its maximum temperature
Bug fix: Charts could cause permanent whitespace to show up
Bug fix: Changed date format of the temperature chart from 12-hour to 24-hour format
Bug fix: File lists didn't refresh when moving files to upper directories
Bug fix: Under certain circumstances files with null values were incorrectly sorted
Bug fix: 'Refresh Heightmap' button was not working
Bug fix: Correct board type was not detected in some cases
Bug fix: Unloading the filament of an unselected tool did not send a T-code before M702