New preact based frontend UI for the TTT.

Added rollup compiling

build/rollup.js

@@ -0,0 +1,53 @@
+
+const { resolve } = require('./resolve');
+const { rollup } = require('rollup');
+const alias = require('@rollup/plugin-alias');
+const commonjs = require('@rollup/plugin-commonjs');
+const nodeResolve = require('@rollup/plugin-node-resolve');
+const replace = require('@rollup/plugin-replace');
+const babel = require('rollup-plugin-babel');
+const svg = require('rollup-plugin-react-svg');
+const { terser } = require('rollup-plugin-terser');
+
+const plugins = [
+  replace({ 'process.env.NODE_ENV': '"production"' }),
+  alias({
+    entries: [
+      { find: 'react', replacement: 'preact/compat' },
+      { find: 'react-dom', replacement: 'preact/compat' },
+      { find: 'svg', replacement: resolve('svg') },
+      { find: 'utils', replacement: resolve('build/lib/util.js') },
+    ],
+  }),
+  svg(),
+  babel({
+    exclude: 'node_modules/**',
+  }),
+  nodeResolve(),
+  commonjs({
+    include: 'node_modules/**',
+  }),
+];
+
+
+module.exports = exports = async function (input, prod) {
+  const inputOptions = {
+    input,
+    plugins,
+  };
+
+  const outputOptions = {
+    format: 'iife',
+    sourcemap: 'inline',
+    plugins: prod
+      ? [ terser({ output: { comments: false } }) ]
+      : undefined,
+
+  };
+
+  const bundle = await rollup(inputOptions);
+  const output = await bundle.generate(outputOptions);
+
+  // console.log(output);
+  return output.output[0].code;
+};