Added containsIgnoreCase() as shortcut for findIgnoreCase() != end().

source/mijin/util/string.hpp

@@ -864,6 +864,12 @@ inline auto findIgnoreCase(std::string_view haystack, std::string_view needle)
     return std::ranges::search(haystack, needle, &compareIgnoreCase<char>);
 }
 
+[[nodiscard]]
+inline bool containsIgnoreCase(std::string_view haystack, std::string_view needle)
+{
+    return findIgnoreCase(haystack, needle).begin() != haystack.end();
+}
+
 [[nodiscard]]
 inline bool startsWithIgnoreCase(std::string_view string, std::string_view part)
 {