fix(ui): strip internal 'mc' token from the reveal-screen category chip too

The daily reveal chip used displayCategoryName() (a different surface than the
Home pill fixed earlier), so it still showed 'Daily Fun Mc'. Fixed centrally in
the shared helper. Verified live: reveal now shows 'Daily Fun'.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/src/main/java/app/closer/ui/questions/LocalQuestionContent.kt

@@ -337,6 +337,8 @@ private fun answerSummary(question: Question, state: LocalQuestionUiState): Stri
 fun String.displayCategoryName(): String {
     return split("_", "-")
         .filter { it.isNotBlank() }
+        // Internal format tokens (e.g. the "mc" in daily_fun_mc) must never face users.
+        .filterNot { it.lowercase() == "mc" }
         .joinToString(" ") { part -> part.replaceFirstChar { it.uppercaseChar() } }
 }