Summary:
[eslint-typescript/naming-convension rule docs](https://typescript-eslint.io/rules/naming-convention/)
Initially looked into it to enforce UPPER_CASE for top most constants like `const DELAY = 10` which is a standard in js ecosystem, which turned to be more difficuilt(we will still get there).
Turns out we had casing checks disabled for everything but typeLike names. What I did in this diff
- use default setting for eslint rule
`✖ 9890 problems`
- with any propery names
`✖ 8229 problems`
- without checking properies at all
`✖ 3683 problems`
- without checking enum members
`✖ 3231 problems`
- without checking object properties/methods
`✖ 2978 problems`
- allowing PascalCase for variables
`✖ 1657 problems
- allowing PascalCase for functions
`✖ 975 problems
- not checking typeMethod and parameters
`✖ 916 problems`
- allow double underscore before after variable
`✖ 461 problems`
- allow snake_case variables
`✖ 49 problems`
Fix remaining problems.
Future plans. Ban usage of PascalCase for variables that are not components
Reviewed By: LukeDefeo
Differential Revision: D50970193
fbshipit-source-id: d9f3abe6b02c9f7822598c8fa5382f58d067f70e
99dbcfa079