* Add tsconfig.json for common
* Prefer `const` over `let` over `var`
* Kill dead code
* Fix some trivial Typescript issues
* Turn on Typescript linting in common except for no-explicit-any
* Correctly specify tsconfig dir name in functions eslintrc
* Give react children explicit types
* Add explicit types to removeUndefinedProps
* Create StripeSession type
* Give event in Dropdown an explicit type
* Revert "Give event in Dropdown an explicit type"
This reverts commit 80604310f2.
* Give bids in NewBidTable an explicit type
* Cast results of removeUndefinedProps when neccessary
* Fix type of JoinSpans
* Revert "Cast results of removeUndefinedProps when neccessary"
This reverts commit 5541617bc8.
* Revert "Add explicit types to removeUndefinedProps"
This reverts commit ccf8ffb0b5.
* Give React children types everywhere
* Give event a type
* Give event correct type
* Lint
* Standardize React import
Co-authored-by: Marshall Polaris <marshall@pol.rs>
