refactor: condense own tsconfig by removing defaults (#343)

- `pretty: true` and `noEmitOnError: false` are the defaults
  - https://www.typescriptlang.org/tsconfig#pretty
  - https://www.typescriptlang.org/tsconfig#noEmitOnError

- when `strict: true`, `noImplicitAny`, `noImplicitThis`, and
  `strictNullChecks` default to `true` as well
  - https://www.typescriptlang.org/tsconfig#strict
  - I've heavily contributed to the TSConfig docs and the docs for this
    property the most

tsconfig.json

@@ -3,17 +3,12 @@
 	"compilerOptions": {
 		"target": "es6",
 		"module": "ES2020",
-		"noImplicitAny": true,
 		"sourceMap": true,
 		"noUnusedParameters": true,
 		"noUnusedLocals": true,
-		"noImplicitThis": true,
 		"diagnostics": true,
 		"listFiles": true,
-		"pretty": true,
 		"moduleResolution": "node",
-		"noEmitOnError": false,
-		"strictNullChecks": true,
 		"forceConsistentCasingInFileNames": true,
 		"noImplicitReturns": true,
 		"strict": true,
@@ -24,4 +19,4 @@
 		"src/**/*.ts"
 	],
 	"exclude": []
-}
+}