Merge branch 'master' into wcag-improvements

README.md

src/App.vue

src/assets/background/img.png

src/assets/readmeImages/challengePlaythrough.png

src/assets/readmeImages/consumptionOverview.png

src/assets/readmeImages/homepage.png

src/components/ProgressBar.vue

src/components/__tests__/ActiveChallengeDisplay.spec.ts

src/components/__tests__/ActiveMilestoneDisplay.spec.ts

src/components/__tests__/CompletedMilestoneDisplay.spec.ts

src/components/__tests__/FirstTimeAnswers.spec.ts

src/components/__tests__/InactiveChallengeDisplay.spec.ts

src/components/__tests__/create-form/BaseInput.spec.ts

src/components/__tests__/create-form/BaseTextArea.spec.ts

src/components/__tests__/economy/ToggleButton.spec.ts

...components/__tests__/economy/TransactionComponent.spec.ts

...omponents/__tests__/milestonePath/MilestoneButton.spec.ts

src/components/challenge/ActiveChallengeDisplay.vue

src/components/challenge/ActiveChallengesList.vue

src/components/challenge/InactiveChallengeDisplay.vue