Improve launch configuration (#1336)

Cleans up `.vscode/launch.json` and associated files in order to make
extension launch more quickly during local development

## Checklist

- [ ] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [ ] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [ ] I have not broken the cheatsheet

Author: pokey

.vscode/extensions.json

@@ -1,5 +1,9 @@
 {
   // See http://go.microsoft.com/fwlink/?LinkId=827846
   // for the documentation about the extensions.json format
-  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode",
+    "connor4312.esbuild-problem-matchers"
+  ]
 }

.vscode/launch.json

@@ -14,7 +14,7 @@
         "--profile=cursorlessDevelopment"
       ],
       "outFiles": ["${workspaceFolder}/**/out/**/*.js"],
-      "preLaunchTask": "${defaultBuildTask}",
+      "preLaunchTask": "Build extension only",
       "resolveSourceMapLocations": [
         "${workspaceFolder}/**",
         "!**/node_modules/**"

.vscode/tasks.json

@@ -5,19 +5,23 @@
   "tasks": [
     {
       "label": "Build",
-      "dependsOn": ["Populate dist"],
+      "dependsOn": ["Populate dist", "ESBuild", "TSBuild"],
       "group": {
         "kind": "build",
         "isDefault": true
       }
     },
+    {
+      "label": "Build extension only",
+      "dependsOn": ["Populate dist", "ESBuild"],
+      "group": "build"
+    },
     {
       "label": "ESBuild",
       "type": "npm",
       "script": "esbuild",
-      "dependsOn": ["TSBuild"],
       "path": "packages/cursorless-vscode",
-      "isBackground": true,
+      "problemMatcher": "$esbuild",
       "presentation": {
         "reveal": "never"
       },
@@ -27,8 +31,7 @@
       "label": "TSBuild",
       "type": "npm",
       "script": "compile",
-      "problemMatcher": "$tsc-watch",
-      "isBackground": true,
+      "problemMatcher": "$tsc",
       "presentation": {
         "reveal": "never"
       },
@@ -38,9 +41,7 @@
       "label": "Populate dist",
       "type": "npm",
       "script": "populate-dist",
-      "dependsOn": ["ESBuild"],
       "path": "packages/cursorless-vscode",
-      "isBackground": true,
       "presentation": {
         "reveal": "never"
       },