Updated course structures page

.devcontainer/Dockerfile

.devcontainer/devcontainer.json

build.sbt

courses.js

deployscripts/compiled.js

src/main/scala/courses/CBoKGrid.scala

src/main/scala/courses/Course.scala

src/main/scala/courses/DSBOK.scala

src/main/scala/courses/HPlanPrereqWidget.scala

src/main/scala/courses/IdentityVerify.scala

src/main/scala/courses/PlanPrereqWidget.scala

src/main/scala/courses/SWEBOK.scala

src/main/scala/courses/Unit.scala

units.js