feat: Add a shared Stylus configuration to build cozy application

This configuration is copied from cozy-scripts

Because we are migrating our app bundler from create-cozy-app to
Rsbuild, we will remove dependences to cozy-script from our app and so
we will lose access to the embeded .stylintrc file

To prevent this we want to extract this `.stylintrc` file to its own
config repository. Then Rsbuild project will be able to use it by
installing `stylus-config-cozy-app` module

config/stylus-config-cozy-app/.stylintrc

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+{
+  "blocks": "never",
+  "brackets": {
+    "expect": "never",
+    "error": true
+  },
+  "colons": {
+    "expect": "never",
+    "error": true
+  },
+  "colors": {
+    "expect": "always",
+    "error": true
+  },
+  "commaSpace": {
+    "expect": "always",
+    "error": true
+  },
+  "commentSpace": {
+    "expect": "always",
+    "error": true
+  },
+  "cssLiteral": "never",
+  "customProperties": [],
+  "depthLimit": 4,
+  "duplicates": {
+    "expect": true,
+    "error": true
+  },
+  "efficient": {
+    "expect": "always",
+    "error": true
+  },
+  "exclude": [],
+  "extendPref": "@extend",
+  "globalDupe": {
+    "expect": true,
+    "error": true
+  },
+  "groupOutputByFile": {
+    "expect": true,
+    "error": true
+  },
+  "indentPref": {
+    "expect": 4,
+    "error": true
+  },
+  "leadingZero": {
+    "expect": "never",
+    "error": true
+  },
+  "maxErrors": false,
+  "maxWarnings": false,
+  "mixed": {
+    "expect": true,
+    "error": true
+  },
+  "mixins": ["top-padded","right-padded","bottom-padded","left-padded","vertically-padded","horizontally-padded","padded","top-spaced","right-spaced","bottom-spaced","left-spaced","vertically-spaced","horizontally-spaced","spaced","hide","reset"],
+  "namingConvention": {
+    "expect": "lowercase-dash",
+    "error": true
+  },
+  "namingConventionStrict": false,
+  "none": {
+    "expect": "never",
+    "error": true
+  },
+  "noImportant": {
+    "expect": true,
+    "error": true
+  },
+  "parenSpace": {
+    "expect": "never",
+    "error": true
+  },
+  "placeholders": {
+    "expect": "always",
+    "error": true
+  },
+  "prefixVarsWithDollar": false,
+  "quotePref": {
+    "expect": "single",
+    "error": true
+  },
+  "reporterOptions": {
+      "columns": ["lineData", "severity", "description", "rule"],
+      "columnSplitter": "  ",
+      "showHeaders": false,
+      "truncate": true
+  },
+  "semicolons": {
+    "expect": "never",
+    "error": true
+  },
+  "sortOrder": false,
+  "stackedProperties": {
+    "expect": "never",
+    "error": true
+  },
+  "trailingWhitespace": {
+    "expect": "never",
+    "error": true
+  },
+  "universal": {
+    "expect": "never",
+    "error": true
+  },
+  "valid": {
+    "expect": true,
+    "error": true
+  },
+  "zeroUnits": {
+    "expect": "never",
+    "error": true
+  },
+  "zIndexNormalize": {
+    "expect": 1,
+    "error": true
+  }
+}

config/stylus-config-cozy-app/LICENSE

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+MIT License
+
+Copyright (c) 2017-present, Cozy Cloud
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

config/stylus-config-cozy-app/README.md

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+<h1 align="center">Stylus Config Cozy App</h1>
+
+## What's rsbuild-config-cozy-app?
+
+An opinionated configurations for [Stylus](https://stylus-lang.com/) to build Cozy Applications.
+
+## Quick Start
+
+To install:
+
+```bash
+yarn add -D stylus-config-cozy-app
+```
+
+Add `scripts` inside your `package.json` file as follows:
+
+```json
+"scripts": {
+  "lint:styles": "stylint src --config ./node_modules/stylus-config-cozy-app/.stylintrc"
+}
+```
+
+You can now lint your application's stylus files using `yarn lint:styles`

config/stylus-config-cozy-app/package.json

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+{
+  "name": "stylus-config-cozy-app",
+  "version": "0.0.0",
+  "description": "Stylus config for Cozy Application (Cozy Cloud)",
+  "author": "Cozy Cloud",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/cozy/cozy-libs.git"
+  },
+  "homepage": "https://github.com/cozy/cozy-libs/tree/master/config/stylus-config-cozy-app",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/cozy/cozy-libs/issues"
+  },
+  "files": [
+    ".stylintrc"
+  ],
+  "devDependencies": {
+    "stylint": "1.5.9"
+  },
+  "dependencies": {
+  },
+  "peerDependencies": {
+    "stylint": ">=1.5.9"
+  }
+}