Add @config at-rule

This commit adds support for @config introduced with Tailwind 3.2

see: tailwindlabs/tailwindcss#9405

Tailwind CSS.sublime-syntax

@@ -15,6 +15,7 @@ contexts:
 
   at-other:
     - meta_prepend: true
+    - include: tailwind-at-config
     - include: tailwind-at-layer
     - include: tailwind-at-responsive
     - include: tailwind-at-tailwind
@@ -44,6 +45,20 @@ contexts:
 
 ###[ TAILWIND TOPLEVEL AT RULES ]##############################################
 
+  # @config "./tailwind.config.js"
+  tailwind-at-config:
+    - match: (@)(?i:config){{break}}
+      captures:
+        0: keyword.control.directive.css
+        1: punctuation.definition.keyword.css
+      push: tailwind-at-config-content
+
+  tailwind-at-config-content:
+    - meta_scope: meta.at-rule.config.css.tailwind
+    - include: quoted-strings
+    - include: url-functions
+    - include: at-rule-end
+
   tailwind-at-layer:
     - match: (@)layer{{break}}
       captures:

messages/install.txt

@@ -1,5 +1,6 @@
 The CSS syntax extension with support for Tailwind CSS.
 
+- @config
 - @tailwind
 - @apply
 - @layer

tests/syntax_test.tailwind.css

@@ -15,6 +15,12 @@
 
 /* Tailwind CSS */
 
+@config "./tailwind.config.js";
+/* <- meta.at-rule.config.css.tailwind keyword.control.directive.css punctuation.definition.keyword.css */
+/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^ meta.at-rule.config.css.tailwind */
+/*^^^^^ keyword.control.directive.css */
+/*      ^^^^^^^^^^^^^^^^^^^^^^ string.quoted.double.css */
+
 @tailwind base;
 /* <- meta.at-rule.tailwind.css.tailwind keyword.control.directive.css.tailwind punctuation.definition.keyword.css.tailwind */
 /*^^^^^^^^^^^^ meta.at-rule.tailwind.css.tailwind */