* fix(plugins): name the default install source by the registry it names
The add-plugin dialog showed "默认安装源" for pnpm's own registry, which
told the reader nothing about where the install would download from. Name
npm's own registry as the official npm registry, and any other registry
pnpm's own configuration names by that registry's name or host, so the
folded control reads by the registry the install actually asks.
* test(plugins): cover comparing an unparseable registry address
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Co-authored-by: Turtle <[email protected]>
