* Lint arrow-body-style
* Lint prefer-object-spread
Object spread is faster _and_ more readable.
This also fixes a few unnecessary object clones.
* Enable no-parameter-properties
This isn't currently used, but this makes clear that it shouldn't be.
* Refactor more Promises to async/await
* Remove unnecessary code from getDataMoveHTML etc
* Lint prefer-string-starts-ends-with
* Stop using no-undef
According to the typescript-eslint FAQ, this is redundant with
TypeScript, and they're not wrong. This will save us from needing to
specify globals in two different places which will be nice.
`BattlePokedex` is now `Pokedex`, `BattleItems` is now `Items`, etc.
I also renamed `Movedex` to `Moves` and `Statuses` to `Conditions`.
`TypeChart` isn't `Types` yet, because unlike the others, it's not
indexed by ID. That should probably be fixed one day.
