fix: error return attachFS and typo doc

Author: Laure-di

internal/services/file/filesystem.go

@@ -163,7 +163,7 @@ func ResourceFileSystemUpdate(ctx context.Context, d *schema.ResourceData, m any
 		req.Name = types.ExpandUpdatedStringPtr(d.Get("name"))
 	}
 
-	if d.HasChange("size_in_gb_in_gb") {
+	if d.HasChange("size_in_gb") {
 		req.Size = types.ExpandUint64Ptr(d.Get("size_in_gb"))
 	}
 

internal/services/instance/server.go

@@ -551,7 +551,7 @@ func ResourceInstanceServerCreate(ctx context.Context, d *schema.ResourceData, m
 				ServerID:     res.Server.ID,
 			})
 			if err != nil {
-				return nil
+				return diag.FromErr(err)
 			}
 		}
 	}