♻️(frontend) Marianne single source of truth

We now use Marianne font from @gouvfr-lasuite/ui-kit
package instead of a versionned local copies.
This ensures we always use the latest version of
the font.
During a build or dev command, Marianne font files
are copied from node_modules to the public assets
folder. They can stop being versionned.

src/frontend/apps/impress/next.config.js

@@ -1,5 +1,7 @@
 const crypto = require('crypto');
+const path = require('path');
 
+const CopyPlugin = require('copy-webpack-plugin');
 const { InjectManifest } = require('workbox-webpack-plugin');
 
 const buildId = crypto.randomBytes(256).toString('hex').slice(0, 8);
@@ -41,6 +43,21 @@ const nextConfig = {
       },
     );
 
+    // Copy necessary fonts from node_modules to public directory during build or dev
+    config.plugins.push(
+      new CopyPlugin({
+        patterns: [
+          {
+            from: path.resolve(
+              __dirname,
+              '../../node_modules/@gouvfr-lasuite/ui-kit/dist/assets/fonts/Marianne',
+            ),
+            to: path.resolve(__dirname, 'public/assets/fonts/Marianne'),
+          },
+        ],
+      }),
+    );
+
     if (!isServer && process.env.NEXT_PUBLIC_SW_DEACTIVATED !== 'true') {
       config.plugins.push(
         new InjectManifest({