Use ESBuild API instead of passing command line arguments (#16)

esbuild.config.mjs

@@ -0,0 +1,27 @@
+import esbuild from "esbuild";
+import process from "process";
+
+const banner = 
+`/*
+THIS IS A GENERATED/BUNDLED FILE BY ESBUILD
+if you want to view the source visit the plugins github repository
+*/
+`;
+
+const prod = (process.argv[2] === 'production');
+
+esbuild.build({
+    banner: {
+        js: banner,
+    },
+    entryPoints: ['main.ts'],
+    bundle: true,
+    external: ['obsidian'],
+    format: 'cjs',
+    watch: !prod,
+    target: 'es2016',
+    logLevel: "info",
+    sourcemap: prod ? false : 'inline',
+    treeShaking: true,
+    outfile: 'main.js',
+}).catch(() => process.exit(1));