chore: move pnpm-specific settings from .npmrc to .npmrc.yml

- Move shamefully-hoist=true and node-linker=hoisted to .npmrc.yml
- These are pnpm-specific settings that should use .npmrc.yml format

This fixes npm warnings about unknown project config options when
running npm commands. The .npmrc.yml format is the recommended
way to configure pnpm-specific settings in a project.

See: https://pnpm.io/npmrc.html

Author: hobostay

.npmrc .npmrc.yml.npmrc renamed to .npmrc.yml

@@ -1,2 +1,3 @@
+# pnpm-specific settings
 shamefully-hoist=true
 node-linker=hoisted