feat(#664): update react to v17, and typescript to match

[riiniii]

Fixes #664. -- currently blocked by npm run build which uses tsdx (tsdx uses typescript v3, and sends error when seeing that we used tsConfig.compilerOptions = 'react-jsx' which is a typescript 4 compatible option (react-jsx used over prev option to implement react 17 jsx-transform) Changes proposed in this pull request:

• update react & react-dom to v17

• update typescript to v4

• ran codemod to remove + update React imports

• update eslint to match react w/o import

• tsconfig needs to be "react-jsx" instead of "react" now to support jsx transform

• existing typescript errors TS2769: No overload matches this call. Overload 1 of 2, '(props: ReplaceProps<"symbol", BsPrefixProps<"symbol"> & ColProps> | Readonly<ReplaceProps<"symbol", BsPrefixProps<"symbol"> & ColProps>>): Col<...>', gave the following error. Type '"symbol" | "object" | "title" | "cite" | "data" | "form" | "label" | "pattern" | "span" | "summary" | "slot" | "style" | ComponentClass<any, any> | FunctionComponent<any> | ... 163 more ... | undefined' is not assignable to type '"symbol" | undefined'. Type '"object"' is not assignable to type '"symbol" | undefined'. Overload 2 of 2, '(props: ReplaceProps<"symbol", BsPrefixProps<"symbol"> & ColProps>, context: any): Col<"symbol">', gave the following error. Type '"symbol" | "object" | "title" | "cite" | "data" | "form" | "label" | "pattern" | "span" | "summary" | "slot" | "style" | ComponentClass<any, any> | FunctionComponent<any> | ... 163 more ... | undefined' is not assignable to type '"symbol" | undefined'. Type '"object"' is not assignable to type '"symbol" | undefined'. https://github.com/HospitalRun/hospitalrun/issues/363

causes build to fail, so change type to keyof JSX.IntrinsicElements, and typings match appropriately

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