Switch from npm to pnpm (#127)

* Switch from npm to pnpm
Remove npm lock file and Volta config; add packageManager and engines

* Update CONTRIBUTING to use pnpm

CONTRIBUTING.md

@@ -67,8 +67,8 @@ When transitioning from a default state to one of the above states, the relevant
 Here's one way to work the theme:
 + Fork or clone the repository
 + From your terminal, `cd` to the repository
-+ Run `npm install`
-+ Run `npm run build`
++ Run `pnpm install`
++ Run `pnpm run build`
   + You will now be able to see the compiled SASS under `dist/`
 + Symlink the `dist/catppuccin.css` file to your Obsidian vault's `.obsidian/snippets` directory using `ln dist/catppuccin.css /path/to/your/vault/.obsidian/snippets/catppuccin.css`
 + Enable the snippet in Obsidian's settings

package.json

@@ -18,9 +18,10 @@
     "url": "https://github.com/catppuccin/obsidian/issues"
   },
   "homepage": "https://github.com/catppuccin/obsidian#readme",
-  "volta": {
-    "node": "23.4.0",
-    "npm": "10.9.2"
+  "packageManager": "pnpm@10.11.0",
+  "engines": {
+    "node": ">=23.0.0",
+    "pnpm": ">=10.11.0"
   },
   "dependencies": {
     "sass": "^1.80.6"

pnpm-workspace.yaml

@@ -0,0 +1,2 @@
+onlyBuiltDependencies:
+  - '@parcel/watcher'