[gnome-builder] buildui: Add mnemonics to buttons and make small buttons focusable

[Christian Hergert <chergert src gnome org>]

commit c79cdaa9de7c9a5a10f44204678f3b2313df1567
Author: vanadiae <vanadiae35 gmail com>
Date:   Tue Jun 29 16:04:45 2021 +0200

    buildui: Add mnemonics to buttons and make small buttons focusable
    
    For no good reasons the small buttons with an icon had can_focus set to
    False, which makes them impossible to focus with the keyboard. There's
    a lot of useless can_focus = False on labels/images in this file (and
    probably others), but unless they break the keynav there's no point in
    making huge diffs for that as it'll move all around when porting to
    GTK 4.

 src/plugins/buildui/gbp-buildui-omni-bar-section.ui | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)
---
diff --git a/src/plugins/buildui/gbp-buildui-omni-bar-section.ui 
b/src/plugins/buildui/gbp-buildui-omni-bar-section.ui
index a920c75f8..964849576 100644
--- a/src/plugins/buildui/gbp-buildui-omni-bar-section.ui
+++ b/src/plugins/buildui/gbp-buildui-omni-bar-section.ui
@@ -43,7 +43,6 @@
                 <child>
                   <object class="GtkButton">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Update project dependencies</property>
@@ -69,7 +68,6 @@
                 <child>
                   <object class="GtkButton" id="configure_button">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Configure build preferences</property>
@@ -302,7 +300,6 @@
                     <child>
                       <object class="GtkButton">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="focus_on_click">False</property>
                         <property name="receives_default">False</property>
                         <property name="tooltip_text" translatable="yes">View build console 
contents</property>
@@ -485,9 +482,9 @@
             <property name="homogeneous" translatable="yes">True</property>
             <child>
               <object class="GtkButton">
-                <property name="label" translatable="yes">Build</property>
+                <property name="label" translatable="yes">_Build</property>
+                <property name="use-underline">True</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">build-manager.build</property>
               </object>
@@ -499,9 +496,9 @@
             </child>
             <child>
               <object class="GtkButton">
-                <property name="label" translatable="yes">Rebuild</property>
+                <property name="label" translatable="yes">_Rebuild</property>
+                <property name="use-underline">True</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">build-manager.rebuild</property>
               </object>
@@ -513,9 +510,9 @@
             </child>
             <child>
               <object class="GtkButton">
-                <property name="label" translatable="yes">Clean</property>
+                <property name="label" translatable="yes">_Clean</property>
+                <property name="use-underline">True</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">build-manager.clean</property>
               </object>
@@ -527,9 +524,9 @@
             </child>
             <child>
               <object class="GtkButton">
-                <property name="label" translatable="yes">Export Bundle</property>
+                <property name="label" translatable="yes">_Export Bundle</property>
+                <property name="use-underline">True</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">build-manager.export</property>
                 <style>