Change `add_on` translation to `added_on` and include placeholder for the date (#24562)

- Very similar to #24550

The correct thing to do is to translate the entire phrase into a single
string. The previous translation assumed all languages have a space
between the "added on" and the date (and that "added on" comes before
the date).

Some languages, like Hebrew, have no space between the "added on" and
the date. For example:
```ini
added_on=נוסף ב-%s
```
("added" becomes נוסף, "on" is ב and when paired with a date we use a
dash to connect ב with the date)

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: delvh <dev.lh@web.de>

options/locale/locale_en-US.ini

@@ -754,7 +754,7 @@ ssh_principal_deletion_desc = Removing a SSH Certificate Principal revokes its a
 ssh_key_deletion_success = The SSH key has been removed.
 gpg_key_deletion_success = The GPG key has been removed.
 ssh_principal_deletion_success = The principal has been removed.
-add_on = Added on
+added_on = Added on %s
 valid_until_date = Valid until %s
 valid_forever = Valid forever
 last_used = Last used on

templates/repo/settings/deploy_keys.tmpl

@@ -60,7 +60,7 @@
 									{{.Fingerprint}}
 								</div>
 								<div class="activity meta">
-									<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" .CreatedUnix}}</span> —  {{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}} - <span>{{$.locale.Tr "settings.can_read_info"}}{{if not .IsReadOnly}} / {{$.locale.Tr "settings.can_write_info"}} {{end}}</span></i>
+									<i>{{$.locale.Tr "settings.added_on" (DateTime "short" .CreatedUnix) | Safe}} —  {{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}} - <span>{{$.locale.Tr "settings.can_read_info"}}{{if not .IsReadOnly}} / {{$.locale.Tr "settings.can_write_info"}} {{end}}</span></i>
 								</div>
 							</div>
 						</div>

templates/shared/secrets/add_list.tmpl

@@ -44,8 +44,7 @@
 				<div class="print meta">******</div>
 				<div class="activity meta">
 					<i>
-						{{$.locale.Tr "settings.add_on"}}
-						<span>{{.CreatedUnix.FormatShort}}</span>
+						{{$.locale.Tr "settings.added_on" (DateTime "short" .CreatedUnix) | Safe}}
 					</i>
 				</div>
 			</div>

templates/user/settings/applications.tmpl

@@ -29,7 +29,7 @@
 								</ul>
 							</details>
 							<div class="activity meta">
-								<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" .CreatedUnix}}</span> — {{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
+								<i>{{$.locale.Tr "settings.added_on" (DateTime "short" .CreatedUnix) | Safe}} — {{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
 							</div>
 						</div>
 					</div>

templates/user/settings/grants_oauth2.tmpl

@@ -20,7 +20,7 @@
 				<div class="content">
 					<strong>{{$grant.Application.Name}}</strong>
 					<div class="activity meta">
-						<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" $grant.CreatedUnix}}</span></i>
+						<i>{{$.locale.Tr "settings.added_on" (DateTime "short" $grant.CreatedUnix) | Safe}}</i>
 					</div>
 				</div>
 			</div>

templates/user/settings/keys_gpg.tmpl

@@ -68,7 +68,7 @@
 						<b>{{$.locale.Tr "settings.subkeys"}}:</b> {{range .SubsKey}} {{.PaddedKeyID}} {{end}}
 					</div>
 					<div class="activity meta">
-						<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" .AddedUnix}}</span></i>
+						<i>{{$.locale.Tr "settings.added_on" (DateTime "short" .AddedUnix) | Safe}}</i>
 						-
 						<i>{{if not .ExpiredUnix.IsZero}}{{$.locale.Tr "settings.valid_until_date" (DateTime "short" .ExpiredUnix) | Safe}}{{else}}{{$.locale.Tr "settings.valid_forever"}}{{end}}</i>
 					</div>

templates/user/settings/keys_principal.tmpl

@@ -25,7 +25,7 @@
 					<div class="content">
 						<strong>{{.Name}}</strong>
 						<div class="activity meta">
-							<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" .CreatedUnix}}</span> —  {{svg "octicon-info" 16}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
+							<i>{{$.locale.Tr "settings.added_on" (DateTime "short" .CreatedUnix) | Safe}} —  {{svg "octicon-info" 16}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
 						</div>
 					</div>
 				</div>

templates/user/settings/keys_ssh.tmpl

@@ -59,7 +59,7 @@
 								{{.Fingerprint}}
 						</div>
 						<div class="activity meta">
-								<i>{{$.locale.Tr "settings.add_on"}} <span>{{DateTime "short" .CreatedUnix}}</span> —	{{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
+								<i>{{$.locale.Tr "settings.add_on" (DateTime "short" .CreatedUnix) | Safe}} —	{{svg "octicon-info"}} {{if .HasUsed}}{{$.locale.Tr "settings.last_used"}} <span {{if .HasRecentActivity}}class="green"{{end}}>{{DateTime "short" .UpdatedUnix}}</span>{{else}}{{$.locale.Tr "settings.no_activity"}}{{end}}</i>
 						</div>
 				</div>
 			</div>