feat(navigation): hard-switch to Zibll navigation and Font Awesome 5

tests/widget-system/toast-contract.test.cjs

@@ -190,7 +190,7 @@ test('notyf CSS and WordPress enqueue match the reference contract', () => {
 
   assert.match(scripts, /'aksrt-notyf',[\s\S]*?'\/assets\/js\/notyf\.js',[\s\S]*?\['jquery'\]/);
   assert.match(scripts, /'aksrt-runtime',[\s\S]*?\['aksrt-rehydrate', 'aksrt-notyf'\]/);
-  assert.match(scripts, /'\/assets\/css\/frontend\/notyf\.css',[\s\S]*?'aksrt-font-awesome-5-v4-shims'/);
+  assert.match(scripts, /'\/assets\/css\/frontend\/notyf\.css',[\s\S]*?'_fontawesome'/);
 });
 
 test('balance center actions use direct fixed-id notyf flows', () => {