BUG: Fix monteverdi confusing layer delete UI

Swap delete and delete all buttons order
Change delete icon to be visually more different than delete all

Modules/Visualization/Monteverdi/src/mvdMainWindow.qrc

@@ -7,7 +7,7 @@
     <file alias="action_LayerProjection_Icon">../../../../Utilities/Data/Icons/projection_24x24.png</file>
     <file alias="action_LayerUp_Icon">../../../../Utilities/Data/Icons/layer-up_24x24.png</file>
     <file alias="action_LayerBottom_Icon">../../../../Utilities/Data/Icons/layer-bottom_24x24.png</file>
-    <file alias="action_LayerDelete_Icon">../../../../Utilities/Data/Icons/layer-delete_24x24.png</file>
+    <file alias="action_LayerDelete_Icon">../../../../Utilities/Data/Icons/layer-delete.png</file>
     <file alias="action_LayerDown_Icon">../../../../Utilities/Data/Icons/layer-down_24x24.png</file>
     <file alias="action_LayerTop_Icon">../../../../Utilities/Data/Icons/layer-top_24x24.png</file>
     <file alias="action_ZoomFull_Icon">../../../../Utilities/Data/Icons/zoom-1to1.png</file>

Modules/Visualization/MonteverdiGui/src/mvdLayerStackWidget.ui

@@ -194,9 +194,9 @@
       </widget>
      </item>
      <item>
-      <widget class="QToolButton" name="deleteAllButton">
+      <widget class="QToolButton" name="deleteButton">
        <property name="toolTip">
-        <string>Delete all layers</string>
+        <string>Delete selected layer</string>
        </property>
        <property name="locale">
         <locale language="C" country="AnyCountry"/>
@@ -206,14 +206,14 @@
        </property>
        <property name="icon">
         <iconset>
-         <normaloff>:/icons/action_LayerDeleteAll_Icon</normaloff>:/icons/action_LayerDeleteAll_Icon</iconset>
+         <normaloff>:/icons/action_LayerDelete_Icon</normaloff>:/icons/action_LayerDelete_Icon</iconset>
        </property>
       </widget>
      </item>
      <item>
-      <widget class="QToolButton" name="deleteButton">
+      <widget class="QToolButton" name="deleteAllButton">
        <property name="toolTip">
-        <string>Delete selected layer</string>
+        <string>Delete all layers</string>
        </property>
        <property name="locale">
         <locale language="C" country="AnyCountry"/>
@@ -223,7 +223,7 @@
        </property>
        <property name="icon">
         <iconset>
-         <normaloff>:/icons/action_LayerDelete_Icon</normaloff>:/icons/action_LayerDelete_Icon</iconset>
+         <normaloff>:/icons/action_LayerDeleteAll_Icon</normaloff>:/icons/action_LayerDeleteAll_Icon</iconset>
        </property>
       </widget>
      </item>