Fix PHP in HTML style tags

extensions/php/build/update-grammar.js

@@ -8,8 +8,9 @@ const updateGrammar = require('../../../build/npm/update-grammar');
 
 function adaptInjectionScope(grammar) {
 	// we're using the HTML grammar from https://github.com/textmate/html.tmbundle which has moved away from source.js.embedded.html
+	// also we need to add source.css scope for PHP code in <style> tags, which are handled differently in atom
 	const oldInjectionKey = "text.html.php - (meta.embedded | meta.tag), L:((text.html.php meta.tag) - (meta.embedded.block.php | meta.embedded.line.php)), L:(source.js.embedded.html - (meta.embedded.block.php | meta.embedded.line.php))";
-	const newInjectionKey = "text.html.php - (meta.embedded | meta.tag), L:((text.html.php meta.tag) - (meta.embedded.block.php | meta.embedded.line.php)), L:(source.js - (meta.embedded.block.php | meta.embedded.line.php))";
+	const newInjectionKey = "text.html.php - (meta.embedded | meta.tag), L:((text.html.php meta.tag) - (meta.embedded.block.php | meta.embedded.line.php)), L:(source.js - (meta.embedded.block.php | meta.embedded.line.php)), L:(source.css - (meta.embedded.block.php | meta.embedded.line.php))";
 
 	const injections = grammar.injections;
 	const injection = injections[oldInjectionKey];