[shotwell] Rename Delay to Duration

[Jens Georg <jensgeorg src gnome org>]

commit f373edb7344f7d18876417778e2964b46ded9d9f
Author: Jens Georg <mail jensge org>
Date:   Sat Sep 10 18:49:45 2022 +0200

    Rename Delay to Duration
    
    Fixes #222

 data/gsettings/org.gnome.shotwell.gschema.xml | 10 +++++-----
 data/ui/slideshow_settings.ui                 |  6 ++++--
 2 files changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/data/gsettings/org.gnome.shotwell.gschema.xml b/data/gsettings/org.gnome.shotwell.gschema.xml
index f5630fb2..9cda045d 100644
--- a/data/gsettings/org.gnome.shotwell.gschema.xml
+++ b/data/gsettings/org.gnome.shotwell.gschema.xml
@@ -190,20 +190,20 @@
 <schema id="org.gnome.shotwell.preferences.slideshow">
     <key name="delay" type="d">
         <default>3.0</default>
-        <summary>delay</summary>
-        <description>Delay (in seconds) between photos in the slideshow</description>
+        <summary>duration</summary>
+        <description>The time (in seconds) to show each photo in the slideshow</description>
     </key>
 
-    <key name="transition-delay" type="d">
+    <key name="transition-duration" type="d">
         <default>0.3</default>
-        <summary>transition delay</summary>
+        <summary>transition duration</summary>
         <description>The time (in seconds) that a transition runs between photos in a slideshow</description>
     </key>
 
     <key name="transition-effect-id" type="s">
         <default>""</default>
         <summary>transition effect id</summary>
-        <description>The name of the transition effect that will be used between photos when running a 
slideshow</description>
+        <description>The time (in seconds) to show each transition between photos in a 
slideshow</description>
     </key>
 
     <key name="show-title" type="b">
diff --git a/data/ui/slideshow_settings.ui b/data/ui/slideshow_settings.ui
index 8bddfa85..1abfa394 100644
--- a/data/ui/slideshow_settings.ui
+++ b/data/ui/slideshow_settings.ui
@@ -95,7 +95,8 @@
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="halign">end</property>
-                        <property name="label" translatable="yes">_Delay:</property>
+                        <property name="label" translatable="yes">_Duration:</property>
+                        <property name="tooltip-text" translatable="yes">The time (in seconds) to show each 
photo</property>
                         <property name="use_underline">True</property>
                         <property name="mnemonic_widget">delay_hscale</property>
                       </object>
@@ -123,7 +124,8 @@
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="halign">end</property>
-                        <property name="label" translatable="yes">Transition d_elay:</property>
+                        <property name="label" translatable="yes">Transition d_uration:</property>
+                        <property name="tooltip-text" translatable="yes">The time (in seconds) to show each 
transition between photos</property>
                         <property name="use_underline">True</property>
                       </object>
                       <packing>