remove npm workspaces + use published utils package

Author: severo

README.md

@@ -10,3 +10,9 @@ It also contains the following applications:
 - [`hyperparam`](./apps/cli): a cli tool for viewing arbitrarily large datasets in the browser.
 - [`hightable-demo`](./apps/hightable-demo): an example project showing how to use [hightable](https://github.com/hyparam/hightable).
 - [`hyparquet-demo`](./apps/hyparquet-demo): an example project showing how to use [hyparquet](https://github.com/hyparam/hyparquet).
+
+## Development
+
+The dependencies between the packages and applications of this monorepo are pinned, and the packages are published to npm. It means that the changes in a dependency are not automatically reflected in the dependent package or application.
+
+To make the development easier, you can locally replace the npm dependencies with the local packages, replacing the pinned versions (eg `"@hyparam/utils": "0.1.0",`) with a relative path (`"@hyparam/utils": "file:../../packages/utils",`). It's not ideal, we might switch to pnpm or yarn workspaces in the future.

apps/hyparquet-demo/package.json

@@ -13,7 +13,7 @@
     "test": "vitest run --dir test"
   },
   "dependencies": {
-    "@hyparam/utils": "file:../../packages/utils",
+    "@hyparam/utils": "0.1.0",
     "hyparquet": "1.5.0",
     "hyparquet-compressors": "0.1.4",
     "hightable": "0.7.0",

package.json

@@ -38,7 +38,7 @@
     "test": "vitest run"
   },
   "dependencies": {
-    "@hyparam/utils": "file:../utils",
+    "@hyparam/utils": "0.1.0",
     "hightable": "0.6.3",
     "hyparquet": "1.5.0",
     "hyparquet-compressors": "0.1.4"