language_html: Improve subsyntax highlighting (#1043)

* language_html: Improve subsyntax highlighting

- Adjusted `<script>`/`<style>` tag detection to not break when attributes like `defer` are added

data/plugins/language_html.lua

@@ -3,29 +3,20 @@ local syntax = require "core.syntax"
 
 syntax.add {
   name = "HTML",
-  files = { "%.html?$" },
+  files = { "%.html?$" },  
   block_comment = { "<!--", "-->" },
   patterns = {
     {
       pattern = {
-        "<%s*[sS][cC][rR][iI][pP][tT]%s+[tT][yY][pP][eE]%s*=%s*" ..
-          "['\"]%a+/[jJ][aA][vV][aA][sS][cC][rR][iI][pP][tT]['\"]%s*>",
-        "<%s*/[sS][cC][rR][iI][pP][tT]>"
+        "<%s*[sS][cC][rR][iI][pP][tT]%f[%s>].->",
+        "<%s*/%s*[sS][cC][rR][iI][pP][tT]%s*>"
       },
       syntax = ".js",
       type = "function"
     },
     {
       pattern = {
-        "<%s*[sS][cC][rR][iI][pP][tT]%s*>",
-        "<%s*/%s*[sS][cC][rR][iI][pP][tT]>"
-      },
-      syntax = ".js",
-      type = "function"
-    },
-    {
-      pattern = {
-        "<%s*[sS][tT][yY][lL][eE][^>]*>",
+        "<%s*[sS][tT][yY][lL][eE]%f[%s>].->",
         "<%s*/%s*[sS][tT][yY][lL][eE]%s*>"
       },
       syntax = ".css",