Theme file update for template substitution and generator

Fixes #253

Author: sheetalkamat

TypeScript.tmTheme

@@ -8,7 +8,7 @@
   <array>
     <dict>
       <key>scope</key>
-      <string>storage.modifier, storage.type, keyword.control, keyword.others.ts, keyword.operator.new.ts</string>
+      <string>storage.modifier, storage.type, keyword.control, keyword.others.ts, keyword.operator.new.ts, keyword.generator.asterisk, punctuation.definition.template-expression</string>
       <key>settings</key>
       <dict>
         <key>vsclassificationtype</key>
@@ -27,7 +27,7 @@
 
     <dict>
       <key>scope</key>
-      <string>string, punctuation.definition.string, punctuation.definition.template-expression, constant.character.escape.ts</string>
+      <string>string, punctuation.definition.string, constant.character.escape.ts</string>
       <key>settings</key>
       <dict>
         <key>vsclassificationtype</key>

TypeScriptReact.tmTheme

@@ -8,7 +8,7 @@
   <array>
     <dict>
       <key>scope</key>
-      <string>storage.modifier, storage.type, keyword.control, keyword.others.tsx, keyword.operator.new.tsx</string>
+      <string>storage.modifier, storage.type, keyword.control, keyword.others.tsx, keyword.operator.new.tsx, keyword.generator.asterisk, punctuation.definition.template-expression</string>
       <key>settings</key>
       <dict>
         <key>vsclassificationtype</key>
@@ -27,7 +27,7 @@
 
     <dict>
       <key>scope</key>
-      <string>string, punctuation.definition.string, punctuation.definition.template-expression, constant.character.escape.tsx</string>
+      <string>string, punctuation.definition.string, constant.character.escape.tsx</string>
       <key>settings</key>
       <dict>
         <key>vsclassificationtype</key>