Fix OAuth code exchange and go lint

Authorization-code exchange used ExternalClientID, which
is empty for registered clients and broke e2e token
grants. Pass the authenticated client's GID instead.

Also satisfy wsl_v5 blank-line rules, wire the delete
reference dialog through its mutation hook, and name the
filemanager logger.

Signed-off-by: Bryan Frimin <bryan@probo.com>

pkg/certmanager/cache_store.go

@@ -60,6 +60,7 @@ func (w *CacheStore) WarmCache(ctx context.Context) error {
 		ctx,
 		func(ctx context.Context, conn pg.Querier) error {
 			var domains coredata.CustomDomains
+
 			keepCertificateIDs, err := domains.LoadReferencedCertificateIDs(ctx, conn)
 			if err != nil {
 				return fmt.Errorf("cannot load referenced certificate ids: %w", err)