`docsify` fails under yarn pnp strict mode due to missing `ansi-colors` dependency

Yarn (v2/3) by default operates in a strict Plug'n'Play mode which does not allow directly loading indirect dependencies.

`lib/commands/init.js` directly requires `ansi-colors`, but it's not listed in `package.json`.

`yarn run docsify`, therefore, fails (even if `docsify-cli` is correctly registered in `package.json`).

Adding `"ansi-colors": "^4.1.1"` to `dependencies` should be enough (I chose that version because it's what's already in `package-lock.json` from an indirect dependency).

```shellsession
$ yarn run docsify
/Users/tlilley/projects/veatech/sbx/smithy/.pnp.cjs:11796
throw firstError;
^

Error: docsify-cli tried to access ansi-colors, but it isn't declared in its dependencies; this makes the require call ambiguous and unsound.

Required package: ansi-colors
Required by: docsify-cli@npm:4.4.4 (via /Users/tlilley/projects/veatech/sbx/smithy/.yarn/cache/docsify-cli-npm-4.4.4-3d7dbcc799-2f72ff07d0.zip/node_modules/docsify-cli/lib/commands/)

Require stack:
- /Users/tlilley/projects/veatech/sbx/smithy/.yarn/cache/docsify-cli-npm-4.4.4-3d7dbcc799-2f72ff07d0.zip/node_modules/docsify-cli/lib/commands/init.js
- /Users/tlilley/projects/veatech/sbx/smithy/.yarn/cache/docsify-cli-npm-4.4.4-3d7dbcc799-2f72ff07d0.zip/node_modules/docsify-cli/lib/index.js
- /Users/tlilley/projects/veatech/sbx/smithy/.yarn/cache/docsify-cli-npm-4.4.4-3d7dbcc799-2f72ff07d0.zip/node_modules/docsify-cli/bin/docsify
at require$$0.Module._resolveFilename (/Users/tlilley/projects/veatech/sbx/smithy/.pnp.cjs:11795:13)
at require$$0.Module._load (/Users/tlilley/projects/veatech/sbx/smithy/.pnp.cjs:11645:42)
at Module.require (node:internal/modules/cjs/loader:1157:19)
at require (node:internal/modules/helpers:119:18)
at Object. (/Users/tlilley/projects/veatech/sbx/smithy/.yarn/cache/docsify-cli-npm-4.4.4-3d7dbcc799-2f72ff07d0.zip/node_modules/docsify-cli/lib/commands/init.js:10:16)
at Module._compile (node:internal/modules/cjs/loader:1275:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1329:10)
at require$$0.Module._extensions..js (/Users/tlilley/projects/veatech/sbx/smithy/.pnp.cjs:11839:33)
at Module.load (node:internal/modules/cjs/loader:1133:32)
at require$$0.Module._load (/Users/tlilley/projects/veatech/sbx/smithy/.pnp.cjs:11676:14)

Node.js v19.8.1
```