[gnome-calendar] window: Use Alt instead of Ctrl

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 5c8fec5008073a5574de9f4f67d5b6231eaba4e0
Author: Björn Daase <bjoern daase net>
Date:   Sat Feb 12 22:42:39 2022 +0100

    window: Use Alt instead of Ctrl
    
    This seems to be the more preferred modifier for selecting views
    within an application (e.g., Chrome, Firefox, Geary, Nautilus).

 src/gui/gcal-window.ui      | 6 +++---
 src/gui/gtk/help-overlay.ui | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/src/gui/gcal-window.ui b/src/gui/gcal-window.ui
index a377f563..be53ffa8 100644
--- a/src/gui/gcal-window.ui
+++ b/src/gui/gcal-window.ui
@@ -67,21 +67,21 @@
         </child>
         <child>
           <object class="GtkShortcut">
-            <property name="trigger">&lt;Control&gt;1</property>
+            <property name="trigger">&lt;Alt&gt;1</property>
             <property name="action">action(win.change-view)</property>
             <property name="arguments">0</property>
           </object>
         </child>
         <child>
           <object class="GtkShortcut">
-            <property name="trigger">&lt;Control&gt;2</property>
+            <property name="trigger">&lt;Alt&gt;2</property>
             <property name="action">action(win.change-view)</property>
             <property name="arguments">1</property>
           </object>
         </child>
         <child>
           <object class="GtkShortcut">
-            <property name="trigger">&lt;Control&gt;3</property>
+            <property name="trigger">&lt;Alt&gt;3</property>
             <property name="action">action(win.change-view)</property>
             <property name="arguments">2</property>
           </object>
diff --git a/src/gui/gtk/help-overlay.ui b/src/gui/gtk/help-overlay.ui
index 2f0319d2..c58450b1 100644
--- a/src/gui/gtk/help-overlay.ui
+++ b/src/gui/gtk/help-overlay.ui
@@ -82,19 +82,19 @@
             <child>
               <object class="GtkShortcutsShortcut">
                 <property name="title" translatable="yes" context="shortcut window">Week view</property>
-                <property name="accelerator">&lt;Primary&gt;1</property>
+                <property name="accelerator">&lt;Alt&gt;1</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
                 <property name="title" translatable="yes" context="shortcut window">Month view</property>
-                <property name="accelerator">&lt;Primary&gt;2</property>
+                <property name="accelerator">&lt;Alt&gt;2</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
                 <property name="title" translatable="yes" context="shortcut window">Year view</property>
-                <property name="accelerator">&lt;Primary&gt;3</property>
+                <property name="accelerator">&lt;Alt&gt;3</property>
               </object>
             </child>
           </object>