Changed tsx tag to html operator (#960)

Co-authored-by: Armando Aguirre <araguir@microsoft.com>

TypeScriptReact.YAML-tmTheme

@@ -16,4 +16,6 @@ settings:
 - scope: invalid.illegal.attribute.tsx
   settings: { vsclassificationtype: identifier }
 
+- scope: punctuation.definition.tag
+  settings: { vsclassificationtype: html operator }
 ...

TypeScriptReact.tmTheme

@@ -269,6 +269,15 @@
           <string>identifier</string>
         </dict>
       </dict>
+      <dict>
+        <key>scope</key>
+        <string>punctuation.definition.tag</string>
+        <key>settings</key>
+        <dict>
+          <key>vsclassificationtype</key>
+          <string>html operator</string>
+        </dict>
+      </dict>
     </array>
   </dict>
 </plist>