fix: fix vscode plugin bugs

- package using npm
  (microsoft/vscode-vsce#432)
- add .vscodeignore
- remove invalid import

Author: hoonoh

packages/vscode-slonik-live-server/.vscodeignore

@@ -0,0 +1,3 @@
+src/
+tsconfig*.json
+.gitignore

packages/vscode-slonik-live-server/package.json

@@ -12,7 +12,7 @@
   "scripts": {
     "postinstall": "yarn build",
     "build": "rimraf dist && tsc -p tsconfig.build.json",
-    "vscode:prepublish": "npm run compile",
+    "vscode:prepublish": "npm install --no-save && npm run compile",
     "compile": "tsc -p ./",
     "watch": "tsc -watch -p ./"
   },

packages/vscode-slonik-live-server/src/index.ts

@@ -1,5 +1,3 @@
-import 'ts-slonik-live-server-plugin';
-
 import { DeepPartial } from 'ts-essentials';
 import { PluginConfig } from 'ts-slonik-live-server-plugin/dist/lib/config';
 import { ExtensionContext, extensions, window, workspace } from 'vscode';