Standardize editor configs for cross-platform development

[yangshun]

Motivation

We have Windows contributors as well, this PR standardizes some platform differences and makes it easier for them to contribute.

I referenced multiple .editorconfig and .gitattribute files across the popular repos to find out the most reasonable settings and added them in this PR. Repos I looked at:

.editorconfig:

• https://github.com/babel/website/blob/master/.editorconfig
• https://github.com/yarnpkg/yarn/blob/master/.editorconfig
• https://github.com/facebook/react/blob/master/.editorconfig
• https://github.com/vuejs/vue/blob/dev/.editorconfig
• https://github.com/facebook/jest/blob/master/.editorconfig
• https://github.com/angular/angular/blob/master/.editorconfig

.gitattributes:

• https://github.com/babel/babel/blob/master/.gitattributes
• https://github.com/yarnpkg/yarn/blob/master/.gitattributes
• https://github.com/facebook/react/blob/master/.gitattributes
• https://github.com/angular/angular/blob/master/.gitattributes

I'm hoping @zenflow can help to test Docusaurus development on Windows locally and if this works, we can add these files as part of the scaffolded files.

Have you read the Contributing Guidelines on pull requests?

Yes

Test Plan

NA since it does not touch code. Should be fine if preview build succeeds.

Related PRs

#583 attempts to fix it in code. I believe fixing it in config is a more usual and robust approach.

[docusaurus-bot]

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[JoelMarcey]

Thanks! Another good step to better Windows support.