Sync branches into databases (#22743)

Related #14180
Related #25233 
Related #22639
Close #19786
Related #12763 

This PR will change all the branches retrieve method from reading git
data to read database to reduce git read operations.

- [x] Sync git branches information into database when push git data
- [x] Create a new table `Branch`, merge some columns of `DeletedBranch`
into `Branch` table and drop the table `DeletedBranch`.
- [x] Read `Branch` table when visit `code` -> `branch` page
- [x] Read `Branch` table when list branch names in `code` page dropdown
- [x] Read `Branch` table when list git ref compare page
- [x] Provide a button in admin page to manually sync all branches.
- [x] Sync branches if repository is not empty but database branches are
empty when visiting pages with branches list
- [x] Use `commit_time desc` as the default FindBranch order by to keep
consistent as before and deleted branches will be always at the end.

---------

Co-authored-by: Jason Song <i@wolfogre.com>

services/repository/fork.go

@@ -157,7 +157,15 @@ func ForkRepository(ctx context.Context, doer, owner *user_model.User, opts Fork
 		if err = repo_module.CreateDelegateHooks(repoPath); err != nil {
 			return fmt.Errorf("createDelegateHooks: %w", err)
 		}
-		return nil
+
+		gitRepo, err := git.OpenRepository(txCtx, repo.RepoPath())
+		if err != nil {
+			return fmt.Errorf("OpenRepository: %w", err)
+		}
+		defer gitRepo.Close()
+
+		_, err = repo_module.SyncRepoBranchesWithRepo(txCtx, repo, gitRepo, doer.ID)
+		return err
 	})
 	needsRollbackInPanic = false
 	if err != nil {