Update HTML highlights (helix-editor#11400)

* Update HTML highlights

* Update after review comments

runtime/queries/html/highlights.scm

@@ -1,13 +1,39 @@
 (tag_name) @tag
-(erroneous_end_tag_name) @tag.error
+(erroneous_end_tag_name) @error
 (doctype) @constant
 (attribute_name) @attribute
 (comment) @comment
 
-[
-  "\""
-  (attribute_value)
-] @string
+((attribute
+  (attribute_name) @_attr
+  (quoted_attribute_value (attribute_value) @markup.link.url))
+ (#any-of? @_attr "href" "src"))
+
+((element
+  (start_tag
+    (tag_name) @_tag)
+  (text) @markup.link.label)
+  (#eq? @_tag "a"))
+
+(attribute [(attribute_value) (quoted_attribute_value)] @string)
+
+((element
+  (start_tag
+    (tag_name) @_tag)
+  (text) @markup.bold)
+  (#any-of? @_tag "strong" "b"))
+
+((element
+  (start_tag
+    (tag_name) @_tag)
+  (text) @markup.italic)
+  (#any-of? @_tag "em" "i"))
+
+((element
+  (start_tag
+    (tag_name) @_tag)
+  (text) @markup.strikethrough)
+  (#any-of? @_tag "s" "del"))
 
 [
   "<"