Added a small description to all pages

client/src/pages/AppWrapper.tsx

client/src/pages/Introduction/index.tsx

client/src/pages/Landing/AboutApp/about-app.scss

client/src/pages/Landing/AboutApp/index.tsx

client/src/pages/Landing/Contact/contact.scss

client/src/pages/Landing/Contact/index.tsx

client/src/pages/Landing/Features/features.scss

client/src/pages/Landing/Features/index.tsx

client/src/pages/Landing/Intro/index.tsx

client/src/pages/Landing/Intro/intro.scss

client/src/pages/Landing/Team/index.tsx

client/src/pages/Landing/Team/team.scss

client/src/pages/Landing/index.tsx

client/src/pages/Login/index.tsx

client/src/pages/Projects/ProjectCreate/index.tsx

...src/pages/Projects/ProjectDetail/ProjectDetails/index.tsx

...t/src/pages/Projects/ProjectDetail/ProjectTasks/index.tsx

client/src/pages/Projects/ProjectDetail/index.tsx

client/src/pages/Projects/ProjectEdit/index.tsx

client/src/pages/Projects/index.tsx