properties_view: Make subtitles selectable

Closes #23

data/gtk/properties_view.ui

@@ -17,6 +17,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Folder</property>
+                    <property name="subtitle-selectable">True</property>
                     <property name="activatable-widget">folder_button</property>
                     <binding name="subtitle">
                       <closure type="gchararray" function="folder_name">
@@ -46,6 +47,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Image Size</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="dimensions">LpPropertiesView</lookup>
                     </binding>
@@ -57,6 +59,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">File Type</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <closure type="gchararray" function="file_type">
                         <lookup name="file-info">LpPropertiesView</lookup>
@@ -70,6 +73,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">File Size</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <closure type="gchararray" function="file_size">
                         <lookup name="file-info">LpPropertiesView</lookup>
@@ -87,6 +91,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">File Created</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <closure type="gchararray" function="created_date">
                         <lookup name="file-info">LpPropertiesView</lookup>
@@ -100,6 +105,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">File Modified</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <closure type="gchararray" function="modified_date">
                         <lookup name="file-info">LpPropertiesView</lookup>
@@ -122,6 +128,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Location</property>
+                    <property name="subtitle-selectable">True</property>
                     <property name="activatable-widget">location_button</property>
                     <binding name="subtitle">
                       <lookup name="location">
@@ -154,6 +161,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Originally Created</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="originally-created">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -174,6 +182,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Aperture</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="f-number">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -194,6 +203,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Exposure</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="exposure-time">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -214,6 +224,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">ISO</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="iso">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -234,6 +245,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Focal Length</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="focal-length">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -254,6 +266,7 @@
                 <child>
                   <object class="AdwActionRow">
                     <property name="title" translatable="yes">Maker, Model</property>
+                    <property name="subtitle-selectable">True</property>
                     <binding name="subtitle">
                       <lookup name="maker-model">
                         <lookup name="metadata">LpPropertiesView</lookup>
@@ -279,4 +292,3 @@
     </property>
   </template>
 </interface>
-