MiniPauker Code

Added 'Hide' command to the task progress monitor to switch the task to the execution in the background

1. Changed defaults: random cards drawing and session autoload are now true
2. When using the 'Save & Quit' and there is no current session to save into then a confirmation dialog is shown
3. Fixed an exception when a task such as session load is running in the background and you try to import a file (it will be stopped before it can do anything and the ExplorerUI.updateView will then fail for having an empty file list - fixed by opening the previous instead of next view for a task that didn't run)

Modified preferences for changes to apply immediately, esp. the scoll adjustment

- Renamed Fast Quit to 'Save & Quit' and the old '(Save) & Quit' to 'Quit Dialog' to make the function clearer
- You can immediately save the current session and quit by pressing the key '5' and confirming the function
while repeating expired or unlearned cards
- Scrolling on the Help page unified with that on the repeat/learn pages, should work better now

autofocus fixed

Re-enabled autofocus on scrollable forms, removed the manual focus setting.

Applied the pageScrollAdjustmentPx from the preferences to the scroll forms, plus some minor refactoring.

The card side edit box size limit increased from 100 to 10,000 as requested by #3021843

improved card text parsing error reporting

- Improved scrolling, autofocus: overriden Container.scroll to scroll to item's top, not bottom. TBD: Reenable form autoscroll , remove explicit focuse setting.
- Export file name - fixed month number (+1 was necessary)
- Other small improvements (after repetition stats correction, ...)