Update StudentService.java

     * @param searchClassLocations       search class locations. Matches *any* class in the section contains *any* location from the search class locations.

     * @param searchCourseType           search course type. See {@link cn.edu.sustech.cs307.service.StudentService.CourseType}

     * @param ignoreFull                 whether or not to ignore full course sections.

     * @param ignoreConflict             whether or not to ignore time-conflicting course sections.

     * @param ignoreConflict             whether or not to ignore course or time conflicting course sections.

     * @param ignorePassed               whether or not to ignore the student's passed courses.

     * @param ignoreMissingPrerequisites whether or not to ignore courses with missing prerequisites.

     * @param pageSize                   the page size, effectively `limit pageSize`.