Improve icons & css & seo & a11y

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/vue.config.js

@@ -1,5 +1,7 @@
 const Dotenv = require('dotenv-webpack');
 const path = require('path');
+const PurgecssPlugin = require('purgecss-webpack-plugin');
+const glob = require('glob-all');
 
 module.exports = {
   pluginOptions: {
@@ -13,6 +15,13 @@ module.exports = {
   configureWebpack: {
     plugins: [
       new Dotenv({ path: path.resolve(process.cwd(), '../.env') }),
+      new PurgecssPlugin({
+        paths: glob.sync([
+          path.join(__dirname, './public/index.html'),
+          path.join(__dirname, './src/**/*.vue'),
+          path.join(__dirname, './src/**/*.ts')
+        ])
+      })
     ],
     module: {
       rules: [ // fixes https://github.com/graphql/graphql-js/issues/1272
@@ -46,6 +55,23 @@ module.exports = {
         .rule("vue")
         .use("vue-svg-inline-loader")
         .loader("vue-svg-inline-loader")
-        .options({ /* ... */ });
+        .options({
+          addAttributes: {
+            role: "img",
+            focusable: false,
+            tabindex: -1,
+            'aria-labelledby': "MobilizonLogoTitle"
+          },
+          svgo: {
+            plugins: [
+              {
+                removeTitle: false,
+              },
+              {
+                cleanupIDs: false
+              }
+            ]
+          }
+        });
   }
 };