General minor issues

[NouraldinS]

• Use uppercase naming convention with your components.
• Rename Table.jsx to Table.js since it doesn't have any JSX inside.
• Delete all empty files.
• Fix project typos in the file names and variable names.
• Delete and ignore node_modules.
• Move the project's files one directory up, so without space-x-graphql.
• Rename ModalC to something more informative.
• Remove all unused variables in the project.
• Use ESlint.