…osition set correctly, added documentation to all components interfaces and functions

…follow scroll

…ments to hide overflowing content, fixed resizing functions to account for new positioning

… hover events to register with the timetable underneath, added pointer-events-auto to TimetableTask divs to re-enable hover events, disabled overscroll on timetable-barrier as it was causing foreground elements to desync with background

…unctions were not working properly likely due to a race condition when setting the scrollTop and scrollLeft properties

…nces of barrier in code with content for more clarity about the purpose of the timetable-content element

…rrecting position to be more clear as to why the correct is necessary, renamed Time-Labels to timetable-time-labels to follow naming convention of other elements, changed headers id from Day-Header to Day-header to follow naming convention of other elements, added background colour and z positioning to timetable-headers div to fix an issue where background could be seen through gaps between headers and added resizing logic for this component within resizeAndPositionTimetableHeaders, changed the zIndex of various components to display correctly

…ing parentElement for better clarity

…nd updated resizeAndPositionTimetableHeaders documentation to mention the resizing of the timetable-headers component