feat: provide support for other package manager like pnpm or yarm

[rajinder-yadav]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already include this feature request, without success.

Describe the Feature Request

I'm on a Linux system and for me NPM now take forever to install packages and sometimes just halts for minutes.

So I have switched to using 'pnpm' and I would like to be able to create a ionic project where pnpm is used as my package manager.

Ionic CLI is hardcoded to use 'npm' even when I've made an alias for 'npm' as 'pnpm' on my Linux system. As a result npm just hangs creating an ionic project.

Describe the Use Case

Creating a new project and or general package management.

Describe Preferred Solution

Just provide a switch to set the package manager, I suggest:

---pnpm
--yarm

Better yet just discover if 'pnpm' or 'yarn' are already install on the system and default to use one of them.

Describe Alternatives

No response

Related Code

No response

Additional Information

No response

---pnpm
--yarm

[htran-ubed]

I created an ionic project using npm. After some time, I migrated to pnpm.

Removed the node_modules folder and some package lock file. Then ran pnpm import and pnpm install.

Some subdependencies, I moved up as top level dependencies (@sveltejs/kit and ionicons) so it stopped complaining when import them in my project without enabling shamefully-hoist.

Also changed npm to pnpm under scripts in package.json.