refactor: migrate parcel to browserify

This also refactors a couple CSS stylesheets to be referenced directly in the
HTML files.

And it removes any CSS imports from src/browser files.

package.json

@@ -29,7 +29,7 @@
     "lint": "./ci/dev/lint.sh",
     "test": "echo 'Run yarn test:unit or yarn test:e2e' && exit 1",
     "ci": "./ci/dev/ci.sh",
-    "watch": "VSCODE_IPC_HOOK_CLI= NODE_OPTIONS=--max_old_space_size=32384 ts-node ./ci/dev/watch.ts",
+    "watch": "VSCODE_IPC_HOOK_CLI= NODE_OPTIONS='--max_old_space_size=32384 --trace-warnings' ts-node ./ci/dev/watch.ts",
     "icons": "./ci/dev/gen_icons.sh",
     "coverage": "codecov"
   },
@@ -37,13 +37,13 @@
   "devDependencies": {
     "@schemastore/package": "^0.0.6",
     "@types/body-parser": "^1.19.0",
+    "@types/browserify": "^12.0.36",
     "@types/compression": "^1.7.0",
     "@types/cookie-parser": "^1.4.2",
     "@types/express": "^4.17.8",
     "@types/http-proxy": "^1.17.4",
     "@types/js-yaml": "^4.0.0",
     "@types/node": "^14.17.1",
-    "@types/parcel-bundler": "^1.12.1",
     "@types/pem": "^1.9.5",
     "@types/proxy-from-env": "^1.0.1",
     "@types/safe-compare": "^1.1.0",
@@ -56,6 +56,7 @@
     "@typescript-eslint/eslint-plugin": "^4.7.0",
     "@typescript-eslint/parser": "^4.7.0",
     "audit-ci": "^4.0.0",
+    "browserify": "^17.0.0",
     "codecov": "^3.8.1",
     "doctoc": "^2.0.0",
     "eslint": "^7.7.0",
@@ -64,7 +65,6 @@
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-prettier": "^3.1.0",
     "leaked-handles": "^5.2.0",
-    "parcel-bundler": "^1.12.5",
     "prettier": "^2.2.1",
     "prettier-plugin-sh": "^0.7.1",
     "shellcheck": "^1.0.0",
@@ -79,9 +79,6 @@
     "doctoc/underscore": "^1.13.1",
     "doctoc/**/trim": "^1.0.0",
     "postcss": "^8.2.1",
-    "parcel-bundler/cssnano": "^5.0.2",
-    "parcel-bundler/ws": "^7.4.6",
-    "parcel-bundler/htmlnano/uncss/jsdom/ws": "^7.4.6",
     "browserslist": "^4.16.5",
     "safe-buffer": "^5.1.1",
     "vfile-message": "^2.0.2"