fidelity: fix eval edge case (via wombat), enable http->https check for wacz sources (via wabac.js)

dependency updates:
- switch to webpack 5 and related build dependencies
- update litelement -> 'lit'
- wabac.js 2.9.2, wombat 1.3.4

search:
- update to latest flexsearch
- optimize search by using single-field index

bump to 1.5.3

webpack.config.js

@@ -4,6 +4,7 @@ const path = require("path");
 const webpack = require("webpack");
 const MiniCssExtractPlugin = require("mini-css-extract-plugin");
 const CopyPlugin = require("copy-webpack-plugin");
+const TerserPlugin = require("terser-webpack-plugin");
 const package_json = require("./package.json");
 
 // fake url used in app to serve files
@@ -25,6 +26,23 @@ const BANNER_TEXT = "'[name].js is part of ReplayWeb.page (https://replayweb.pag
 const IPFS_CORE_URL = `https://cdn.jsdelivr.net/npm/ipfs-core@${package_json.dependencies["ipfs-core"].replace("^", "")}/dist/index.min.js`;
 
 
+const fallback = {
+  "stream": require.resolve("stream-browserify"),
+  "querystring": require.resolve("querystring-es3"),
+  "url": require.resolve("url/"),
+  "buffer": false,
+};
+
+const optimization = {
+  minimize: true,
+  minimizer: [
+    new TerserPlugin({
+      extractComments: false,
+    }),
+  ],
+};
+
+
 const electronMainConfig = (/*env, argv*/) => {
   return {
     target: "electron-main",
@@ -32,12 +50,13 @@ const electronMainConfig = (/*env, argv*/) => {
     entry: {
       "electron": "./src/electron-main.js", 
     },
+    optimization,
     resolve: {
       alias: {
         "abort-controller": "abort-controller/dist/abort-controller.js",
         "dlv": "dlv/dist/dlv.js",
         "bignumber.js": "bignumber.js/bignumber.js",
-        "multiformats/hashes/sha2": "multiformats/cjs/src/hashes/sha2.js"
+        //"multiformats/hashes/sha2": "multiformats/cjs/src/hashes/sha2.js"
       }
     },
     output: {
@@ -77,6 +96,7 @@ const electronPreloadConfig = (/*env, argv*/) => {
     entry: {
       "preload": "./src/electron-preload.js", 
     },
+    optimization,
     plugins: [
       new webpack.BannerPlugin(BANNER_TEXT),
 
@@ -100,6 +120,9 @@ const browserConfig = (/*env, argv*/) => {
       "sw": "./src/sw.js"
     },
 
+    optimization,
+    resolve: {fallback},
+
     output: {
       path: path.join(__dirname),
       filename: "[name].js",
@@ -116,14 +139,17 @@ const browserConfig = (/*env, argv*/) => {
       compress: true,
       port: 9990,
       open: false,
-      contentBase:  path.join(__dirname),
-      publicPath: "/"
+      static:  path.join(__dirname),
+      //publicPath: "/"
     },
 
     plugins: [
       new webpack.optimize.LimitChunkCountPlugin({
         maxChunks: 1,
       }),
+      new webpack.ProvidePlugin({
+        process: "process/browser",
+      }),
       new MiniCssExtractPlugin(),
       new webpack.DefinePlugin({
         __SW_NAME__: JSON.stringify("sw.js"),