Fix workflow dir

Fixed github workflows directory to run actions correctly
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{% note info "Проверка на сжатие ассетов пройдена" %}

Расчет произведен с использованием [коммита](https://nda.ya.ru/t/JJ9yZdgx7GmDxL

{% endnote %}

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Pull Request resolved: #25
commit_hash:c8cd7d5073c544f1508a1224b41f1d0aff83b550

Author: aNOOBisTheGod

.mapping.json

@@ -3,7 +3,6 @@
   ".":"flutter/pro/opensource",
   "CONTRIBUTING.md":"flutter/pro/opensource/CONTRIBUTING.md",
   "README.md":"flutter/pro/opensource/README.md",
-  "yx_scope/.github/workflows/pr.yaml":"flutter/pro/opensource/yx_scope/.github/workflows/pr.yaml",
   "yx_scope/.gitignore":"flutter/pro/opensource/yx_scope/.gitignore",
   "yx_scope/AUTHORS":"flutter/pro/opensource/yx_scope/AUTHORS",
   "yx_scope/CONTRIBUTING.md":"flutter/pro/opensource/yx_scope/CONTRIBUTING.md",

yx_scope/.github/workflows/pr.yaml

@@ -43,13 +43,13 @@ class ResolvedYXScopeResult {
   /// from [element]
   ClassDeclaration? classDeclarationByElement(Element element) {
     for (final unit in units) {
-      final declaration = unit.declarations
+      final declarations = unit.declarations
           .where((declaration) => declaration.declaredElement == element)
-          .whereType<ClassDeclaration>()
-          .firstOrNull;
-      if (declaration != null) {
-        return declaration;
+          .whereType<ClassDeclaration>();
+      if (declarations.isEmpty) {
+        return null;
       }
+      return declarations.first;
     }
     return null;
   }