Resolves: tdf#122448 Change menu Item "Slide->Master Slide"

Change menu Item "Slide->Master Slide" to "Slide->Change Slide Master"
Change dialog name "Slide Design" to "Available Master Slides"
Change dialog name "Load Slide Design" to "Load Master Slide"

Change-Id: I98fab31cdce2e8ddf43f0c8b8519a95e15c13de5
Reviewed-on: https://gerrit.libreoffice.org/65860Reviewed-by: Heiko Tietze <tietze.heiko@gmail.com>
Tested-by: Heiko Tietze <tietze.heiko@gmail.com>

officecfg/registry/data/org/openoffice/Office/UI/DrawImpressCommands.xcu

@@ -1029,7 +1029,7 @@
       </node>
       <node oor:name=".uno:PresentationLayout" oor:op="replace">
         <prop oor:name="Label" oor:type="xs:string">
-          <value xml:lang="en-US">Master Slide...</value>
+          <value xml:lang="en-US">Change Slide Master...</value>
         </prop>
         <prop oor:name="Properties" oor:type="xs:int">
           <value>1</value>

sd/inc/strings.hrc

@@ -151,7 +151,7 @@
 #define STR_INSERT_TEXT                                 NC_("STR_INSERT_TEXT", "Insert Text")
 #define STR_SLIDE_SINGULAR                              NC_("STR_SLIDE_SINGULAR", " Slide")
 #define STR_SLIDE_PLURAL                                NC_("STR_SLIDE_PLURAL", " Slides")
-#define STR_LOAD_PRESENTATION_LAYOUT                    NC_("STR_LOAD_PRESENTATION_LAYOUT", "Load Slide Design")
+#define STR_LOAD_PRESENTATION_LAYOUT                    NC_("STR_LOAD_PRESENTATION_LAYOUT", "Load Master Slide")
 #define STR_DRAGTYPE_URL                                NC_("STR_DRAGTYPE_URL", "Insert as Hyperlink")
 #define STR_DRAGTYPE_EMBEDDED                           NC_("STR_DRAGTYPE_EMBEDDED", "Insert as Copy")
 #define STR_DRAGTYPE_LINK                               NC_("STR_DRAGTYPE_LINK", "Insert as Link")

sd/uiconfig/simpress/ui/slidedesigndialog.ui

@@ -5,7 +5,7 @@
   <object class="GtkDialog" id="SlideDesignDialog">
     <property name="can_focus">False</property>
     <property name="border_width">6</property>
-    <property name="title" translatable="yes" context="slidedesigndialog|SlideDesignDialog">Slide Design</property>
+    <property name="title" translatable="yes" context="slidedesigndialog|SlideDesignDialog">Available Master Slides</property>
     <property name="modal">True</property>
     <property name="default_width">0</property>
     <property name="default_height">0</property>