Merge remote-tracking branch 'origin/main' into qa-1

CHANGELOG.md

frontend/src/analyst/Emails/index.tsx

frontend/src/components/ContentArea/index.tsx

frontend/src/components/ErrorMessage/index.tsx

frontend/src/email/EmailForm/InstructorEmailForm.tsx

frontend/src/email/EmailForm/TraineeEmailForm.tsx

frontend/src/email/EmailForm/modules/HeaderArea.tsx

frontend/src/email/EmailForm/typing.ts

frontend/src/email/EmailForm/useFormState.ts

...nd/src/email/EmailFormOverlay/TraineeEmailFormOverlay.tsx

frontend/src/email/EmailFormOverlay/index.tsx

frontend/src/email/TeamEmails/EmailCard.tsx

frontend/src/email/TeamEmails/InstructorTeamEmails.tsx

frontend/src/email/TeamEmails/TraineeTeamEmails.tsx

frontend/src/email/TeamEmails/index.tsx

frontend/src/global.css

frontend/src/pages/(navbar)/exercise-panel.tsx

frontend/src/pages/(navbar)/graphiql.tsx

frontend/src/pages/(navbar)/index.tsx

frontend/src/pages/(navbar)/settings.tsx