Add "Open Help Center" step in walkthrough (#1002)

Author: CsCherrYY

package.json

@@ -118,9 +118,20 @@
             "title": "Explore more Java resources",
             "description": "%walkthrough.java.more%",
             "media": {
-              "svg": "walkthrough/ok.svg",
+              "svg": "walkthrough/helpCenter.svg",
               "altText": "Explore more Java resources"
-            }
+            },
+            "when": "!isMac"
+          },
+          {
+            "id": "java.moreForMac",
+            "title": "Explore more Java resources",
+            "description": "%walkthrough.java.more%",
+            "media": {
+              "svg": "walkthrough/helpCenterMac.svg",
+              "altText": "Explore more Java resources"
+            },
+            "when": "isMac"
           }
         ]
       }
@@ -280,6 +291,12 @@
         ],
         "priority": "option"
       }
+    ],
+    "keybindings":[
+      {
+        "command": "java.welcome",
+        "key": "shift+f1"
+      }
     ]
   },
   "scripts": {

package.nls.json

@@ -11,5 +11,5 @@
 
     "walkthrough.java.extensions": "Install extensions to support additional frameworks such as Spring Boot, Application Servers, key mappings and so on.\n[Browse Recommended Extensions](command:toSide:java.extGuide)",
 
-    "walkthrough.java.more": "- 🎉 If you want to run your project with a specific runtime, you can [Configure Java Runtime](command:toSide:java.runtime).\n\n- 🎉 Visit [Dev Blogs](https://aka.ms/java-walkthrough-devblogs) to keep up-to-date with our latest product updates and announcements.\n\n- ✨ Discover more shortcuts and features in [Help Center](command:toSide:java.welcome.fromWalkthrough) or check documentation for tips and troubleshooting.\n\n- ✨ Report issues and feedback at our [Github repository](https://aka.ms/java-walkthrough-issue)."
+    "walkthrough.java.more": "✨ Help Center provides tips, resources and links to help you get answers to the most common questions to learn Java on VS Code.\n[Open Help Center](command:java.welcome)"
 }

src/welcome/assets/components/Header.tsx

@@ -4,7 +4,6 @@
 import * as React from "react";
 import { encodeCommandUriWithTelemetry } from "../../../utils/webview";
 import { WEBVIEW_ID } from "../utils";
-const logo = require("../../../../logo.svg");
 
 const DEV_BLOG_LINK = "https://devblogs.microsoft.com/?s=Java+on+Visual+Studio+Code";
 export default class Header extends React.Component {
@@ -15,7 +14,6 @@ export default class Header extends React.Component {
     const subtitle = <span>Check our {blogsLink} to see what's new</span>;
     return (
       <div className="header mt-4">
-        <img alt="logo" src={logo} className="logo"></img>
         <div>
           {title}
           {subtitle}