[feature] add authorization to the already-existing authentication (#365)

* add ensureUserIsAuthorizedOrRedirect to /oauth/authorize

* adding authorization (email confirm, account approve, etc) to TokenCheck

* revert un-needed changes to signin.go

* oops what happened here

* error css

* add account.SuspendedAt check

* remove redundant checks from oauth util Authed function

* wip tests

* tests passing

* stop stripping useful information from ErrAlreadyExists

* that feeling of scraping the dryer LINT off the screen

* oops I didn't mean to get rid of this NewTestRouter function

* make tests work with recorder

* re-add ConfigureTemplatesWithGin to handle template path err

Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

internal/federation/federatingdb/create.go

@@ -231,7 +231,8 @@ func (f *federatingDB) createNote(ctx context.Context, note vocab.ActivityStream
 	status.ID = statusID
 
 	if err := f.db.PutStatus(ctx, status); err != nil {
-		if err == db.ErrAlreadyExists {
+		var alreadyExistsError *db.ErrAlreadyExists
+		if errors.As(err, &alreadyExistsError) {
 			// the status already exists in the database, which means we've already handled everything else,
 			// so we can just return nil here and be done with it.
 			return nil