Maximum input for slice/mm and pixels/mm increased to allow for my ti…

…ny fossil fungi

New limit now 1000000 from 10000 in both cases, and increase decimal point entry from 2 to 3.

Note that SPIERSview will show a scale grid at these very small values but, won't currently show any sensible values for the gridlines.

SPIERSedit/ui/mainwindow.ui

@@ -253,7 +253,7 @@
      <x>0</x>
      <y>0</y>
      <width>962</width>
-     <height>24</height>
+     <height>21</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
@@ -1778,7 +1778,7 @@
         <enum>QTabWidget::Rounded</enum>
        </property>
        <property name="currentIndex">
-        <number>1</number>
+        <number>0</number>
        </property>
        <widget class="QWidget" name="tabSettings">
         <attribute name="title">
@@ -1813,8 +1813,11 @@
                <property name="keyboardTracking">
                 <bool>false</bool>
                </property>
+               <property name="decimals">
+                <number>3</number>
+               </property>
                <property name="maximum">
-                <double>10000.000000000000000</double>
+                <double>1000000.000000000000000</double>
                </property>
               </widget>
              </item>
@@ -1843,8 +1846,11 @@
                <property name="keyboardTracking">
                 <bool>false</bool>
                </property>
+               <property name="decimals">
+                <number>3</number>
+               </property>
                <property name="maximum">
-                <double>10000.000000000000000</double>
+                <double>1000000.000000000000000</double>
                </property>
               </widget>
              </item>