Modify compression scheme - no longer compressing index.html due to issues serving compressed file directly with .send on esp32

Removed css from compression plugin - using CSS-in-JS in app
Introduce favicon - add mapping for favicon.ico, was previously sending html response for requests for the favicon

Author: rjwats

interface/config-overrides.js

@@ -21,11 +21,11 @@ module.exports = function override(config, env) {
     const extractTextPlugin = config.plugins.find((plugin) => plugin instanceof ExtractTextPlugin);
     extractTextPlugin.filename = "css/[name].[contenthash:4].css";
 
-    // add compression plugin, compress javascript, html and css
+    // add compression plugin, compress javascript
     config.plugins.push(new CompressionPlugin({
       asset: "[path].gz[query]",
       algorithm: "gzip",
-      test: /\.(js|html|css)$/,
+      test: /\.(js)$/,
       deleteOriginalAssets: true
     }));
   }

interface/public/favicon.ico

@@ -51,6 +51,7 @@ void setup() {
     server.serveStatic("/css/", SPIFFS, "/www/css/");
     server.serveStatic("/fonts/", SPIFFS, "/www/fonts/");
     server.serveStatic("/app/", SPIFFS, "/www/app/");
+    server.serveStatic("/favicon.ico", SPIFFS, "/www/favicon.ico");
 
     // Serving all other get requests with "/www/index.htm"
     // OPTIONS get a straight up 200 response