fix: Remove servers with invalid package entries

Fixes #49

This removes 36 servers that had package entries pointing to non-existent packages on PyPI or npm. These servers either:
1. Never published their packages to the registries, or
2. Used incorrect package identifiers (e.g., GitHub usernames instead of package names)

Since these servers cannot be installed via package managers and lack valid package metadata, they have been removed from the registry.

Author: domdomegg