move bridge plugin to package

packages/bridge-plugin/build.js

@@ -0,0 +1,13 @@
+const esbuild = require("esbuild");
+const path = require("path");
+
+module.exports = esbuild.build({
+  entryPoints: [path.join(__dirname, "src", "main.js")],
+  bundle: true,
+  outfile: path.join(__dirname, "main.js"),
+  format: "cjs",
+  platform: "browser",
+  target: ["chrome90"],
+  external: ["obsidian", "fs"],
+  logLevel: "info",
+});