Cleanup client code formatting

client/api.jsx

client/components/Footer.jsx

client/components/PanelGenerate.jsx

client/views/AddExam.jsx

client/views/Exam.css

client/views/Exam.jsx

client/views/ExamEditor.jsx

client/views/Fail.jsx

client/views/Graders.jsx

client/views/Home.jsx

client/views/Loading.jsx

client/views/Reset.jsx

client/views/Students.jsx

client/views/Submissions.jsx

client/views/grade/EditPanel.jsx

client/views/grade/FeedbackBlock.jsx

client/views/grade/FeedbackPanel.jsx

client/views/students/EditPanel.jsx

client/views/students/StudentPanelBlock.jsx