Added postError function for short error notifications. Using existsSync to check if binary exists. Seperated onConfigChange into different functions. lineNum -2 for windows instead of -1 for linux, such a pain.

server/src/utils.ts

@@ -0,0 +1,6 @@
+import { connection } from './server'
+
+export function postError(e: Error) {
+    connection.window.showErrorMessage(e.message)
+    console.log(e)
+}