Internationalize notification branch selection strings

Signed-off-by: Balasankar "Balu" C <balasankar@gitlab.com>

app/models/project_services/notification_branch_selection.rb

@@ -4,10 +4,10 @@
 # PipelinesEmailService classes. Not to be used directly.
 module NotificationBranchSelection
   BRANCH_CHOICES = [
-    ['All branches', 'all'],
-    ['Default branch', 'default'],
-    ['Protected branches', 'protected'],
-    ['Default branch and protected branches', 'default_and_protected']
+    [_('All branches'), 'all'],
+    [_('Default branch'), 'default'],
+    [_('Protected branches'), 'protected'],
+    [_('Default branch and protected branches'), 'default_and_protected']
   ].freeze
 
   def notify_for_branch?(data)

locale/gitlab.pot

@@ -1228,6 +1228,9 @@ msgstr ""
 msgid "All Members"
 msgstr ""
 
+msgid "All branches"
+msgstr ""
+
 msgid "All changes are committed"
 msgstr ""
 
@@ -4650,6 +4653,12 @@ msgstr ""
 msgid "Default artifacts expiration"
 msgstr ""
 
+msgid "Default branch"
+msgstr ""
+
+msgid "Default branch and protected branches"
+msgstr ""
+
 msgid "Default classification label"
 msgstr ""
 
@@ -12337,6 +12346,9 @@ msgstr ""
 msgid "Protected Tag"
 msgstr ""
 
+msgid "Protected branches"
+msgstr ""
+
 msgid "ProtectedEnvironment|%{environment_name} will be writable for developers. Are you sure?"
 msgstr ""