Move to stylelint-codeguide

Replace `stylelint-stylistic` with `stylelint-codeguide` to allow
upgrade to Stylelint 16

Also changes Node version constraints to match `stylelint-codeguide`
requirements

Ref:
- elirasza/stylelint-stylistic#17
- https://github.com/firefoxic/stylelint-codeguide


Close twbs#232, close twbs#206

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [14, 16, 18, 20]
+        node: [18, 20]
 
     steps:
       - name: Clone repository

index.js

@@ -3,8 +3,10 @@
 module.exports = {
   'extends': [
     'stylelint-config-standard',
-    'stylelint-config-recess-order',
-    'stylelint-stylistic/config'
+    'stylelint-config-recess-order'
+  ],
+  'plugins': [
+    'stylelint-codeguide'
   ],
   'rules': {
     'alpha-value-notation': null,
@@ -40,22 +42,22 @@ module.exports = {
     'selector-max-universal': 1,
     'selector-no-qualifying-type': true,
     'selector-not-notation': null, // TODO enable this later
-    'stylistic/at-rule-name-space-after': 'always',
-    'stylistic/at-rule-semicolon-space-before': 'never',
-    'stylistic/block-closing-brace-empty-line-before': null,
-    'stylistic/block-closing-brace-newline-after': null,
-    'stylistic/block-opening-brace-space-before': null,
-    'stylistic/declaration-block-semicolon-newline-before': 'never-multi-line',
-    'stylistic/max-empty-lines': 2,
-    'stylistic/max-line-length': null,
-    'stylistic/number-leading-zero': 'never',
-    'stylistic/selector-list-comma-newline-before': 'never-multi-line',
-    'stylistic/selector-list-comma-space-after': 'always-single-line',
-    'stylistic/selector-list-comma-space-before': 'never-single-line',
-    'stylistic/unicode-bom': 'never',
-    'stylistic/value-list-comma-newline-after': 'never-multi-line',
-    'stylistic/value-list-comma-newline-before': 'never-multi-line',
-    'stylistic/value-list-comma-space-after': 'always'
+    'codeguide/at-rule-name-space-after': 'always',
+    'codeguide/at-rule-semicolon-space-before': 'never',
+    'codeguide/block-closing-brace-empty-line-before': null,
+    'codeguide/block-closing-brace-newline-after': null,
+    'codeguide/block-opening-brace-space-before': null,
+    'codeguide/declaration-block-semicolon-newline-before': 'never-multi-line',
+    'codeguide/max-empty-lines': 2,
+    'codeguide/max-line-length': null,
+    'codeguide/number-leading-zero': 'never',
+    'codeguide/selector-list-comma-newline-before': 'never-multi-line',
+    'codeguide/selector-list-comma-space-after': 'always-single-line',
+    'codeguide/selector-list-comma-space-before': 'never-single-line',
+    'codeguide/unicode-bom': 'never',
+    'codeguide/value-list-comma-newline-after': 'never-multi-line',
+    'codeguide/value-list-comma-newline-before': 'never-multi-line',
+    'codeguide/value-list-comma-space-after': 'always'
   },
   'overrides': [
     {