Add NPM package, debs, rpms and refactor CI/build process

Closes many issues that I'll prune after adding more docs
for users.

ci/build/build-code-server.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Builds code-server into out and the frontend into dist.
+
+# MINIFY controls whether parcel minifies dist.
+MINIFY=${MINIFY-true}
+
+main() {
+  cd "$(dirname "${0}")/../.."
+
+  npx tsc --outDir out --tsBuildInfoFile .cache/out.tsbuildinfo
+  # If out/node/entry.js does not already have the shebang,
+  # we make sure to add it and make it executable.
+  if ! grep -q -m1 "^#!/usr/bin/env node" out/node/entry.js; then
+    sed -i.bak "1s;^;#!/usr/bin/env node\n;" out/node/entry.js && rm out/node/entry.js.bak
+    chmod +x out/node/entry.js
+  fi
+
+  npx parcel build \
+    --public-url "/static/$(git rev-parse HEAD)/dist" \
+    --out-dir dist \
+    $([[ $MINIFY ]] || echo --no-minify) \
+    src/browser/pages/app.ts \
+    src/browser/register.ts \
+    src/browser/serviceWorker.ts
+}
+
+main "$@"