fix: update source-map-loader

Addresses error with nth-check source-map parsing: webpack-contrib/source-map-loader#186

Author: agoose77

package.json

@@ -93,6 +93,7 @@
         "npm-run-all": "^4.1.5",
         "prettier": "^2.1.1",
         "rimraf": "^3.0.2",
+        "source-map-loader": "^4.0.1",
         "stylelint": "^14.3.0",
         "stylelint-config-prettier": "^9.0.4",
         "stylelint-config-recommended": "^6.0.0",
@@ -103,7 +104,7 @@
         "typescript": "~4.1.3"
     },
     "peerDependencies": {
-      "react": "^17.0.1"
+        "react": "^17.0.1"
     },
     "sideEffects": [
         "style/*.css",