Fix repo level project - edit column (#24982)

Right now edit column of repo level project is not working, because edit
button does not have the `edit-column-button` class, which is used in
the [js
selector](28077e66c0/web_src/js/features/repo-projects.js (L106))

After:


https://github.com/go-gitea/gitea/assets/17645053/e1fba190-477d-4814-87f2-0fd979376840

Co-authored-by: Giteabot <teabot@gitea.io>

templates/repo/projects/view.tmpl

@@ -150,7 +150,7 @@
 
 											<div class="text right actions">
 												<button class="ui cancel button">{{$.locale.Tr "settings.cancel"}}</button>
-												<button data-url="{{$.RepoLink}}/projects/{{$.Project.ID}}/{{.ID}}" class="ui primary button">{{$.locale.Tr "repo.projects.column.edit"}}</button>
+												<button data-url="{{$.RepoLink}}/projects/{{$.Project.ID}}/{{.ID}}" class="ui primary button edit-column-button">{{$.locale.Tr "repo.projects.column.edit"}}</button>
 											</div>
 										</form>
 									</div>