Setup hello world extension

[Abdul-Andha]

• Using react, init a project
• Basic google extension following tutorial on Docs

[mnk0015]

Overview:

View README for additional instructions to run the code.

• Updated manifest.json: add name, action, permissions, and host permissions The manifest_version is updated to 3, and the name of the app is added. An action field with a default popup of "index.html" is included. Permissions and host permissions are also added to allow scripting and access to all http and https websites.

• Update manifest.json: add icons and host permissions array This update adds an "icons" field to manifest.json, specifying various icon sizes. It also moves the "host_permissions" field into a proper array. Permissions were given to begin scripting.

-Add types for chrome and dependencies This commit adds the @types/chrome package as a devDependency and includes its dependencies: @types/filesystem and @types/har-format.|

I also transferred over all the new code from the new branch we made into this branch. (I don't think we delete the old branch though as it has all the old commit messages if anyone wants to view them).