improvements in resources

resources/src/jsMain/kotlin/StringResourceExtensions.kt

@@ -0,0 +1,11 @@
+package dev.inmo.micro_utils.strings
+
+import dev.inmo.micro_utils.language_codes.IetfLang
+import kotlinx.browser.window
+import org.w3c.dom.NavigatorLanguage
+
+fun StringResource.translation(language: NavigatorLanguage) = translation(
+    language.language.unsafeCast<String?>() ?.let { IetfLang(it) }
+)
+
+fun StringResource.translation() = translation(window.navigator)