chore(*): prettify and upgrade eslint

[adnasa]

• adds prettier
• updates eslint
• uses prop-types

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Now, I understand that this PR can be really noisy with 2.8K additions, but it's mostly a scroll through PR, except take note of these changes

• package.json https://github.com/DextApp/dext/pull/184/files#diff-50
• extended eslintrc https://github.com/DextApp/dext/pull/184/files#diff-1

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next up (another PR)

• upgrade babel
• upgrade webpack

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QA

check out this branch, and try out the following

• yarn install && yarn lint && yarn build (additional run a prod build)
• yarn dev

Running the commands above, and dext is still up and running (locally at least 😉 )

[vutran]

I think we can just ditch eslint and let prettier handle reformatting overall. No need for linting anymore unless we want to enforce specific rulesets.

[vutran]

Aside from that LGTM.

[vutran]

I added the travis project since the repo was moved. Coveralls still not updating their cache to let me add from org account so it won't report correctly.

[adnasa]

aight let's do this 🚀

[adnasa]

@vutran

btw, I forgot to reply you on this point

I think we can just ditch eslint and let prettier handle reformatting overall. No need for linting anymore unless we want to enforce specific rulesets.

Actually, I would keep linting, since eslint-plugin-react offers rules that discourages usage of this.setState e.g in render. I wouldn't want to review code that contains this kind of mistakes :)

[vutran]

Actually, I would keep linting, since eslint-plugin-react offers rules that discourages usage of this.setState e.g in render. I wouldn't want to review code that contains this kind of mistakes :)

Awesome! Once we move to lerna, perhaps an eslint dext plugin would be good. 😀