feat(javascript): add TypeScript living documentation

Add support for TypeScript living documentation in the JavaScript language extension.

Author: phodal

javascript/src/main/resources/cc.unitmesh.javascript.xml

@@ -40,6 +40,8 @@
 
         <livingDocumentation language="JavaScript"
                              implementationClass="cc.unitmesh.ide.javascript.provider.JavaScriptLivingDocumentation"/>
+        <livingDocumentation language="TypeScript"
+                             implementationClass="cc.unitmesh.ide.javascript.provider.JavaScriptLivingDocumentation"/>
 
         <buildSystemProvider implementation="cc.unitmesh.ide.javascript.provider.JavaScriptBuildSystemProvider" />
     </extensions>