Fix error when running yarn start

From Colbert's fix: uclaacm/teach-la-ts-react-starter@79d438e

webpack.dev.js

@@ -28,7 +28,7 @@ module.exports = merge(common, {
   },
   devtool: 'inline-source-map',
   devServer: {
-    contentBase: './dist',
+    static: './dist',
     historyApiFallback: true,
     hot: true,
     port: 3000,

yarn.lock

@@ -1332,11 +1332,6 @@
     "@babel/runtime" "^7.7.2"
     regenerator-runtime "^0.13.3"
 
-"@leichtgewicht/ip-codec@^2.0.1":
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/@leichtgewicht/ip-codec/-/ip-codec-2.0.3.tgz#0300943770e04231041a51bd39f0439b5c7ab4f0"
-  integrity sha512-nkalE/f1RvRGChwBnEIoBfSEYOXnCRdleKuv6+lePbMDrMZXeDQnqak5XDOeBgrPPyPfAdcCu/B5z+v3VhplGg==
-
 "@jridgewell/gen-mapping@^0.1.0":
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/@jridgewell/gen-mapping/-/gen-mapping-0.1.1.tgz#e5d2e450306a9491e3bd77e323e38d7aff315996"
@@ -1368,6 +1363,11 @@
     "@jridgewell/resolve-uri" "^3.0.3"
     "@jridgewell/sourcemap-codec" "^1.4.10"
 
+"@leichtgewicht/ip-codec@^2.0.1":
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/@leichtgewicht/ip-codec/-/ip-codec-2.0.3.tgz#0300943770e04231041a51bd39f0439b5c7ab4f0"
+  integrity sha512-nkalE/f1RvRGChwBnEIoBfSEYOXnCRdleKuv6+lePbMDrMZXeDQnqak5XDOeBgrPPyPfAdcCu/B5z+v3VhplGg==
+
 "@nodelib/[email protected]":
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz#7619c2eb21b25483f6d167548b4cfd5a7488c3d5"
@@ -5573,6 +5573,11 @@ nanoid@^3.3.3:
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.3.tgz#fd8e8b7aa761fe807dba2d1b98fb7241bb724a25"
   integrity sha512-p1sjXuopFs0xg+fPASzQ28agW1oHD7xDsd9Xkf3T15H3c/cifrFHVwrh74PdoklAPi+i7MdRsE47vm2r6JoB+w==
 
+nanoid@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
+  integrity sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -6119,7 +6124,7 @@ postcss-value-parser@^4.1.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.2.15, postcss@^8.3.11, postcss@^8.4.12:
+postcss@^8.3.11, postcss@^8.4.12:
   version "8.4.13"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.13.tgz#7c87bc268e79f7f86524235821dfdf9f73e5d575"
   integrity sha512-jtL6eTBrza5MPzy8oJLFuUscHDXTV5KcLlqAWHl5q5WYRfnNRGSmOZmOZ1T6Gy7A99mOZfqungmZMpMmCVJ8ZA==
@@ -6128,6 +6133,15 @@ postcss@^8.2.15, postcss@^8.3.11, postcss@^8.4.12:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
+postcss@^8.4.7:
+  version "8.4.14"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.14.tgz#ee9274d5622b4858c1007a74d76e42e56fd21caf"
+  integrity sha512-E398TUmfAYFPBSdzgeieK2Y1+1cpdxJx8yXbK/m57nRhKSmk1GB2tO4lbLBtlkfPQTDKfe4Xqv1ASWPpayPEig==
+  dependencies:
+    nanoid "^3.3.4"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
 prelude-ls@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"