searching is now case insensitive

src/widgets/helper/channelview.cpp

@@ -466,6 +466,7 @@ void ChannelView::setChannel(std::shared_ptr<Channel> newChannel)
 
     this->userPopupWidget.setChannel(newChannel);
     this->layoutMessages();
+    this->queueUpdate();
 }
 
 void ChannelView::detachChannel()

src/widgets/helper/searchpopup.cpp

@@ -76,7 +76,9 @@ void SearchPopup::performSearch()
     for (size_t i = 0; i < this->snapshot.getLength(); i++) {
         messages::SharedMessage message = this->snapshot[i];
 
-        if (text.isEmpty() || message->getContent().indexOf(this->searchInput->text()) != -1) {
+        if (text.isEmpty() ||
+            message->getContent().indexOf(this->searchInput->text(), 0, Qt::CaseInsensitive) !=
+                -1) {
             channel->addMessage(message);
         }
     }

src/widgets/scrollbar.cpp

@@ -226,7 +226,7 @@ void Scrollbar::paintEvent(QPaintEvent *)
 
     int w = this->width();
     float y = 0;
-    float dY = (float)(this->height() + MIN_THUMB_HEIGHT) / (float)snapshotLength;
+    float dY = (float)(this->height()) / (float)snapshotLength;
     int highlightHeight = std::ceil(dY);
 
     for (int i = 0; i < snapshotLength; i++) {