custom intrasemester class ordering

[Sovannjet]

currently, within a semester, classes are ordered by time of insert. this is fine as a default, but i want to be able to customize the order of classes within a semester by simply dragging an individual class left or right of another, rather than using the current workaround of dragging a class off and back onto the same semester. streamlined custom class ordering would be useful for mentally grouping classes within a semester, exempli gratia by the requirements they satisfy, their priority/importance, their type (ex. technical vs. hass, etc.), their vibe, et cetera.