Show picked outcome in prediction badges. (#3357)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/providers/twitch/TwitchMessageBuilder.cpp

@@ -1101,6 +1101,22 @@ void TwitchMessageBuilder::appendTwitchBadges()
                         .arg(subMonths);
             }
         }
+        else if (badge.flag_ == MessageElementFlag::BadgePredictions)
+        {
+            auto badgeInfoIt = badgeInfos.find(badge.key_);
+            if (badgeInfoIt != badgeInfos.end())
+            {
+                auto predictionText =
+                    badgeInfoIt->second
+                        .replace("\\s", " ")  // standard IRC escapes
+                        .replace("\\:", ";")
+                        .replace("\\\\", "\\")
+                        .replace("⸝", ",");  // twitch's comma escape
+                // Careful, the first character is RIGHT LOW PARAPHRASE BRACKET or U+2E1D, which just looks like a comma
+
+                tooltip = QString("Predicted %1").arg(predictionText);
+            }
+        }
 
         this->emplace<BadgeElement>(badgeEmote.get(), badge.flag_)
             ->setTooltip(tooltip);