[shotwell] Fix keyboard shortcut in photo context menu

[Jens Georg <jensgeorg src gnome org>]

commit 0be2168f617d8d47277c83187672e76d9aa0658f
Author: Jens Georg <mail jensge org>
Date:   Fri Sep 6 11:44:33 2019 +0200

    Fix keyboard shortcut in photo context menu
    
    Was Ctrl-a for some reason.
    
    Fixes #166

 data/ui/photo_context.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/ui/photo_context.ui b/data/ui/photo_context.ui
index 27a37d22..00019b89 100644
--- a/data/ui/photo_context.ui
+++ b/data/ui/photo_context.ui
@@ -15,7 +15,7 @@
     <section>
       <item>
         <attribute name="label" translatable="yes">_Add Tags…</attribute>
-        <attribute name="accel">&lt;Primary&gt;a</attribute>
+        <attribute name="accel">&lt;Primary&gt;t</attribute>
         <attribute name="action">win.AddTags</attribute>
       </item>
       <item>