fix TODO:

Author: igagis

src/ruis/widget/label/padding.cpp

@@ -81,7 +81,7 @@ padding::padding(
 	),
 	// clang-format on
 	params(std::move(padding_params)),
-	inner_content(content_container.get())
+	inner_content(std::move(content_container))
 {}
 
 sides<real> padding::get_min_borders() const noexcept

src/ruis/widget/label/padding.hpp

@@ -40,9 +40,7 @@ class padding :
 private:
 	parameters params;
 
-	// TODO: use shared_ref?
-	// NOLINTNEXTLINE(clang-analyzer-webkit.NoUncountedMemberChecker, "false-positive")
-	container& inner_content;
+	utki::shared_ref<container> inner_content;
 
 public:
 	struct all_parameters {
@@ -76,12 +74,12 @@ class padding :
 	 */
 	container& content()
 	{
-		return this->inner_content;
+		return this->inner_content.get();
 	}
 
 	const container& content() const
 	{
-		return this->inner_content;
+		return this->inner_content.get();
 	}
 
 	/**