ci: add linters

Author: the-homeless-god

.editorconfig

@@ -0,0 +1,17 @@
+# http://EditorConfig.org
+
+root = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.(js|ts|tsx)]
+trim_trailing_whitespace = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true
+max_line_length = 100

.prettierrc.js

@@ -1,11 +1,11 @@
 module.exports = {
-    singleQuote: true,
-    printWidth: 120,
-    tabWidth: 2,
-    trailingComma: 'none',
-    bracketSpacing: true,
-    semi: false,
-    useTabs: false,
-    arrowParens: 'avoid',
-    endOfLine: 'auto'
+  singleQuote: true,
+  printWidth: 120,
+  tabWidth: 2,
+  trailingComma: 'none',
+  bracketSpacing: true,
+  semi: false,
+  useTabs: false,
+  arrowParens: 'avoid',
+  endOfLine: 'auto'
 }

.stylelintrc.json

@@ -0,0 +1,20 @@
+{
+  "extends": "stylelint-config-standard-scss",
+  "rules": {
+    "string-quotes": "single",
+    "selector-pseudo-class-no-unknown": [
+      true,
+      {
+        "ignorePseudoClasses": [
+          "global"
+        ]
+      }
+    ]
+  },
+  "ignoreFiles": [
+    "**/*.js",
+    "**/*.ts",
+    "**/*.jsx",
+    "**/*.tsx"
+  ]
+}

commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  extends: ['@commitlint/config-conventional']
+}