Trim trailing newlines from passkey user id

This commit updates the `PasskeyAttestationOptionsSanitizer` to only trim trailing newlines from the user id. Previously, it would trim both leading and trailing whitespace, which could incorrectly alter user ids that legitimately start with whitespace characters. The `trim()` function has been replaced with `trimEnd()` to correct this behavior.

Author: SaintPatrck

app/src/main/kotlin/com/x8bit/bitwarden/data/credentials/sanitizer/PasskeyAttestationOptionsSanitizerImpl.kt

@@ -15,7 +15,7 @@ object PasskeyAttestationOptionsSanitizerImpl : PasskeyAttestationOptionsSanitiz
             options.user.id.endsWith("\n")
         ) {
             options.copy(
-                user = options.user.copy(id = options.user.id.trim()),
+                user = options.user.copy(id = options.user.id.trimEnd()),
             )
         } else {
             options