fix(SW-705): Updated logic for language switcher

components/LanguageSwitcher/LanguageSwitcherContent/utils.ts

@@ -0,0 +1,19 @@
+export function replaceUrlPart(currentPath: string, newPart: string): string {
+  const pathSegments = currentPath.split("/").filter((segment) => segment)
+
+  const newPathSegments = newPart
+    .replace(/\/$/, "")
+    .split("/")
+    .filter((segment) => segment)
+
+  const isFullPathReplacement = newPathSegments.length > 1
+
+  if (isFullPathReplacement) {
+    return `/${newPathSegments.join("/")}`
+  }
+
+  const updatedPathSegments = pathSegments.slice(1)
+  const updatedPath = `/${newPathSegments.concat(updatedPathSegments).join("/")}`
+
+  return updatedPath
+}