Consider changing GitHub repo name or package.json "name"

Currently, the repo name is vscode-graphql and the package.json name is "vscode-apollo". It is currently published to npm as `vscode-apollo` though I'm not sure why it's published there at all. The extension ID is `apollographql.vscode-apollo` and tht tiel is `Apollo GraphQL`. `vscode-graphql` does not exist in npm but there is another repository by that name which is a separate project: https://github.com/graphql/vscode-graphql

It would be a bit less confusing if these aligned a bit more; I think changing the GitHub repo name to vscode-apollo would be the simplest change.

┆Issue is synchronized with this [Jira Task](https://apollographql.atlassian.net/browse/NEBULA-751) by [Unito](https://www.unito.io)

Start by reviewing package.json alongside the repository name, npm package name, extension ID, and display title listed in the issue. Confirm which naming alignment is chosen and check the effects of changing the repository or package name; done means the selected names are consistent without conflicting with the other vscode-graphql project.

Written by the indexing model from the issue text.