Fix duplicate ID when deleting repo (go-gitea#28520)

There is an accessibility issue in the interface when attempting to
delete a repository. When I click on "Delete repository," a dialog box
appears, requiring confirmation to proceed with the repository deletion.
However, when I press the "Repo name" label, the wrong input field gains
focus. The focused field is located behind the dialog and is intended
for renaming the repository.

templates/repo/migrate/migrating.tmpl

@@ -73,8 +73,8 @@
 				</label>
 			</div>
 			<div class="required field">
-				<label for="repo_name">{{ctx.Locale.Tr "repo.repo_name"}}</label>
-				<input id="repo_name" name="repo_name" required>
+				<label for="repo_name_to_delete">{{ctx.Locale.Tr "repo.repo_name"}}</label>
+				<input id="repo_name_to_delete" name="repo_name" required>
 			</div>
 
 			<div class="text right actions">

templates/repo/settings/options.tmpl

@@ -921,8 +921,8 @@
 					</label>
 				</div>
 				<div class="required field">
-					<label for="repo_name">{{ctx.Locale.Tr "repo.repo_name"}}</label>
-					<input id="repo_name" name="repo_name" required>
+					<label for="repo_name_to_delete">{{ctx.Locale.Tr "repo.repo_name"}}</label>
+					<input id="repo_name_to_delete" name="repo_name" required>
 				</div>
 
 				<div class="text right actions">