add svelte UI

build-ui.js

@@ -0,0 +1,17 @@
+const esbuild = require("esbuild");
+const sveltePlugin = require("esbuild-svelte");
+const path = require("path");
+
+esbuild.build({
+  entryPoints: [path.join(__dirname, "ui", "index.js")],
+  bundle: true,
+  outfile: path.join(__dirname, "dist", "ignis-ui.js"),
+  format: "iife",
+  globalName: "IgnisUI",
+  platform: "browser",
+  target: ["chrome90"],
+  mainFields: ["svelte", "browser", "module", "main"],
+  conditions: ["svelte", "browser"],
+  plugins: [sveltePlugin({ compilerOptions: { css: "injected" } })],
+  logLevel: "info",
+}).catch(() => process.exit(1));