Minified browser code in the packaged final app. (arduino#931)

- Also switched to minified `monaco` code,
- Removed dead code from the packaged.

Signed-off-by: Akos Kitta <kittaakos@gmail.com>

electron/build/template-package.json

@@ -20,8 +20,7 @@
     "shelljs": "^0.8.3"
   },
   "scripts": {
-    "build": "yarn download:plugins && theia build --mode development && yarn patch",
-    "build:publish": "yarn download:plugins && theia build --mode production && yarn patch",
+    "build": "yarn download:plugins && theia build --mode production && yarn patch",
     "rebuild": "yarn theia rebuild:electron",
     "package": "cross-env DEBUG=* && electron-builder --publish=never",
     "package:publish": "cross-env DEBUG=* && electron-builder --publish=always",

electron/packager/index.js

@@ -227,8 +227,7 @@ ${fs.readFileSync(path('..', 'build', 'package.json')).toString()}
     'Installing dependencies'
   );
   exec(
-    `yarn --network-timeout 1000000 --cwd ${path('..', 'build')} build${isElectronPublish ? ':publish' : ''
-    }`,
+    `yarn --network-timeout 1000000 --cwd ${path('..', 'build')} build`,
     `Building the ${productName} application`
   );
   exec(
@@ -488,7 +487,6 @@ ${fs.readFileSync(path('..', 'build', 'package.json')).toString()}
         )}.`
       );
       shell.exit(1);
-      process.exit(1);
     }
     if (expectedVersion) {
       if (!versions.has(expectedVersion)) {
@@ -497,7 +495,6 @@ ${fs.readFileSync(path('..', 'build', 'package.json')).toString()}
           }'.`
         );
         shell.exit(1);
-        process.exit(1);
       }
     }
   }