optimize ever token and ever attach

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 out
 attachments
+*.vsix

.vscode/tasks.json

@@ -8,23 +8,31 @@
 
 // A task runner that calls a custom npm script that compiles the extension.
 {
-    "version": "0.1.0",
+  "version": "2.0.0",
 
-    // we want to run npm
-    "command": "npm",
+  // we want to run npm
+  "command": "npm",
 
-    // the command is a shell script
-    "isShellCommand": true,
+  // we run the custom script "compile" as defined in package.json
+  "args": ["run", "compile", "--loglevel", "silent"],
 
-    // show the output window only if unrecognized errors occur.
-    "showOutput": "silent",
+  // The tsc compiler is started in watching mode
+  "isWatching": true,
 
-    // we run the custom script "compile" as defined in package.json
-    "args": ["run", "compile", "--loglevel", "silent"],
-
-    // The tsc compiler is started in watching mode
-    "isWatching": true,
-
-    // use the standard tsc in watch mode problem matcher to find compile problems in the output.
-    "problemMatcher": "$tsc-watch"
+  // use the standard tsc in watch mode problem matcher to find compile problems in the output.
+  "problemMatcher": "$tsc-watch",
+  "tasks": [
+    {
+      "label": "npm",
+      "type": "shell",
+      "command": "npm",
+      "args": ["run", "compile", "--loglevel", "silent"],
+      "isBackground": true,
+      "problemMatcher": "$tsc-watch",
+      "group": {
+        "_id": "build",
+        "isDefault": false
+      }
+    }
+  ]
 }

.vscodeignore

@@ -8,3 +8,4 @@ src/**
 tsconfig.json
 vsc-extension-quickstart.md
 docs/**
+*.vsix

.yarnrc

@@ -0,0 +1 @@
+--ignore-engines true