refactor(site): match v1 tsconfig; simplify tsconfig.test.json (#426)

* refactor(site): match v1 tsconfig

Summary of changes:

* ordered configurations for ease of readability
* allowJs removed -> not needed after Next.js
* noImplicitAny removed -> this is set to true by strict
* strictNullChecks removed -> this is set to true by strict
* removed lingering next-env.d.ts in include

* refactor(site): simplify tsconfig.test.json

Because that the base tsconfig was simplified when changing from
Next.js, this one now duplicates most of it. I still believe having a
separate tsconfig is a good idea for the purposes of separating tests
from source code. It especially can make it easier for eslint and jest
performance.

site/tsconfig.json

@@ -1,23 +1,20 @@
 {
   "compilerOptions": {
-    "outDir": "./dist/",
-    "noImplicitAny": true,
-    "module": "commonjs",
-    "target": "es5",
-    "jsx": "react",
-    "allowJs": true,
     "downlevelIteration": true,
     "esModuleInterop": true,
-    "resolveJsonModule": true,
-    "isolatedModules": true,
-    "lib": ["dom", "dom.iterable", "esnext"],
-    "skipLibCheck": true,
-    "strict": true,
-    "strictNullChecks": true,
     "forceConsistentCasingInFileNames": true,
     "incremental": true,
-    "moduleResolution": "node"
+    "isolatedModules": true,
+    "jsx": "react",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "outDir": "./dist/",
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "target": "es5"
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
+  "include": ["**/*.ts", "**/*.tsx"],
   "exclude": ["node_modules", "_jest", "**/*.test.tsx"]
 }

site/tsconfig.test.json

@@ -1,13 +1,4 @@
 {
   "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "target": "es5",
-    "module": "commonjs",
-    "jsx": "react",
-    "downlevelIteration": true,
-    "strict": true,
-    "strictNullChecks": true,
-    "esModuleInterop": true
-  },
   "exclude": ["node_modules", "_jest"]
 }