MiniProjectTargetSelector: fix division by zero

Change-Id: I618c92366424e924d13841a36c4393057e8d9aa4
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/projectexplorer/miniprojecttargetselector.cpp

@@ -816,9 +816,9 @@ QVector<int> MiniProjectTargetSelector::listWidgetWidths(int minSize, int maxSiz
 
         int delta;
         if (tooSmall)
-            delta = qMin(next - first, widthToDistribute / i);
+            delta = qMin(next - first, widthToDistribute / qMax(i, 1));
         else
-            delta = qMin(first - next, widthToDistribute / i);
+            delta = qMin(first - next, widthToDistribute / qMax(i, 1));
 
         if (delta == 0)
             return result;