Fix warnings

- Use QChar to compare QString elements
- dashboard.ui: no zorder for spacer

src/qrcore.cpp

@@ -605,7 +605,8 @@ QList<QString> QRCore::getList(const QString &type, const QString &subtype)
         QStringList lines = flags.split("\n");
         for (auto i : lines)
         {
-            if (i[0] != 0 && i[1] == 's') continue; // skip 'fs ..'
+            // TODO: is 0 in a string even possible?
+            if (i[0] != QChar(0) && i[1] == QChar('s')) continue; // skip 'fs ..'
             ret << i.mid(2).replace(" ", ",");
         }
     }

src/widgets/dashboard.ui

@@ -1006,7 +1006,7 @@
 }
 
 QTabWidget::pane { /* The tab widget frame */
-	border-top: 0px;
+    border-top: 0px;
 }
 
 QTabBar::tab {
@@ -1017,8 +1017,8 @@ QTabBar::tab {
     border-top-right-radius: 0px;
     min-width: 8ex;
     padding: 5px;
-	margin-bottom: 3px;
-	margin-top: 3px;
+    margin-bottom: 3px;
+    margin-top: 3px;
 }
 
 QTabBar::tab:selected {
@@ -1144,7 +1144,6 @@ QTabBar::tab:hover {
                 </spacer>
                </item>
               </layout>
-              <zorder>verticalSpacer_3</zorder>
               <zorder>polarWebView</zorder>
              </widget>
             </widget>

src/widgets/importswidget.cpp

@@ -7,7 +7,7 @@
 
 void CMyDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
 {
-    QStyleOptionViewItemV4 itemOption(option);
+    QStyleOptionViewItem itemOption(option);
     initStyleOption(&itemOption, index);
 
     itemOption.rect.adjust(10, 0, 0, 0);  // Make the item rectangle 10 pixels smaller from the left side.