Start adding editor, fix up sidebar styling

angular.json

@@ -18,18 +18,21 @@
             "outputPath": "dist/proto-creator",
             "index": "src/index.html",
             "browser": "src/main.ts",
-            "polyfills": [
-            ],
+            "polyfills": [],
             "tsConfig": "tsconfig.app.json",
             "assets": ["src/assets"],
-            "styles": ["src/styles.scss"]
+            "styles": [
+              "src/styles.scss",
+              "highlight.js/styles/atom-one-dark.min.css"
+            ],
+            "allowedCommonJsDependencies": ["protobufjs"]
           },
           "configurations": {
             "production": {
               "budgets": [
                 {
                   "type": "initial",
-                  "maximumWarning": "500kb",
+                  "maximumWarning": "700kb",
                   "maximumError": "1mb"
                 },
                 {
@@ -69,8 +72,7 @@
         "test": {
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
-            "polyfills": [
-            ],
+            "polyfills": [],
             "tsConfig": "tsconfig.spec.json",
             "inlineStyleLanguage": "scss",
             "assets": [
@@ -79,9 +81,7 @@
                 "input": "public"
               }
             ],
-            "styles": [
-              "src/styles.scss"
-            ],
+            "styles": ["src/styles.scss"],
             "scripts": []
           }
         }