Update target to ES2016, ignore .vscode, switch to 2 space tabs

.gitignore

@@ -1,6 +1,7 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 vercel.json
 *.env*
+.vscode
 
 # dependencies
 /node_modules

.prettierrc

@@ -1,4 +1,13 @@
 {
+	"singleQuote": true,
+	"printWidth": 80,
+	"editor.formatOnSave": true,
+	"proseWrap": "always",
 	"tabWidth": 2,
-  "useTabs": false
+	"requireConfig": false,
+	"useTabs": true,
+	"trailingComma": "none",
+	"bracketSpacing": true,
+	"jsxBracketSameLine": false,
+	"semi": true
 }

tsconfig.json

@@ -1,10 +1,11 @@
 {
 	"compilerOptions": {
-    "target": "es5",
+		"target": "ES2016",
 		"lib": ["dom", "dom.iterable", "esnext"],
 		"allowJs": true,
 		"skipLibCheck": true,
 		"strict": true,
+		"strictNullChecks": true,
 		"forceConsistentCasingInFileNames": true,
 		"noEmit": true,
 		"esModuleInterop": true,