Rework the Twig files parsing

Every bundle file was parsed twice (for !@Bundle + @Bundle namespaces)

+ Passing all the paths to a single Finder allow it to not parse the same folder twice

Author: smnandre

src/Icons/src/Twig/IconFinder.php

@@ -54,20 +54,13 @@ public function icons(): array
      */
     private function files(LoaderInterface $loader): iterable
     {
-        $files = [];
-
         if ($loader instanceof FilesystemLoader) {
+            $paths = [];
             foreach ($loader->getNamespaces() as $namespace) {
-                foreach ($loader->getPaths($namespace) as $path) {
-                    foreach ((new Finder())->files()->in($path)->name('*.twig') as $file) {
-                        $file = (string) $file;
-                        if (!\in_array($file, $files, true)) {
-                            yield $file;
-                        }
-
-                        $files[] = $file;
-                    }
-                }
+                $paths = [...$paths, ...$loader->getPaths($namespace)];
+            }
+            foreach ((new Finder())->files()->in($paths)->name('*.twig') as $file) {
+                yield (string)$file;
             }
         }