OO-2636 make tables aligned in lecture module teacher view

src/main/java/org/olat/modules/lecture/ui/_content/teacher_view.html

@@ -34,4 +34,13 @@
 	$r.render("closedLectures")
 	</fieldset>
 	#end
-</div>
\ No newline at end of file
+</div>
+
+<script type="text/javascript">
+/* <![CDATA[ */ 
+jQuery(function() {
+	var tables = jQuery('.o_lectures_teacher_overview table');
+	BFormatter.alignTableColumns(tables);
+});
+/* ]]> */
+</script>

src/main/webapp/static/themes/light/modules/_lecture.scss

@@ -6,6 +6,17 @@
 
 .o_lectures_teacher_overview .o_table_wrapper.o_table_flexi .table {
 	margin-top: 0;
+	/* make cells with fixed width as small as possible */
+	thead tr {
+		th:nth-of-type(1), 	// date
+		th:nth-of-type(2),	// start time
+		th:nth-of-type(3),	// end time
+		th:nth-of-type(8),	// open action link
+		th:nth-of-type(9) {	// gear actions menu
+			width: 1%;
+		}
+	
+	}
 }
 
 .o_lectures_teacher_overview  .o_info {