Also check dataset.deleted when determining if data can be displayed

This is being called when serialing HDAs in the poller if the HDA is
expaneded.
When we purge via celery we set the HDA to deleted, flush and purge
async, so it is possible that the async task removes the dataset from
disk while the ORM object in the poller still is in non-purged state.

I think this fixes
https://sentry.galaxyproject.org/share/issue/0ae7a9d9ad564054bd11c9a43aa6994c/:
```
FileNotFoundError: [Errno 2] No such file or directory: ''
  File "galaxy/datatypes/interval.py", line 914, in get_estimated_display_viewport
    with compression_utils.get_fileobj(dataset.get_file_name()) as fh:
  File "galaxy/util/compression_utils.py", line 79, in get_fileobj
    return get_fileobj_raw(filename, mode, compressed_formats)[1]
  File "galaxy/util/compression_utils.py", line 139, in get_fileobj_raw
    return compressed_format, open(filename, mode, encoding="utf-8")
```
The error occurred at the same second as the last update to the
history_dataset_association.

lib/galaxy/datatypes/interval.py

@@ -193,7 +193,8 @@ class Interval(Tabular):
     def displayable(self, dataset: DatasetProtocol) -> bool:
         try:
             return (
-                not dataset.dataset.purged
+                not dataset.deleted
+                and not dataset.dataset.purged
                 and dataset.has_data()
                 and dataset.state == dataset.states.OK
                 and dataset.metadata.columns > 0

lib/galaxy/datatypes/protocols.py

@@ -16,6 +16,10 @@ class HasCreatingJob(Protocol):
     def creating_job(self): ...
 
 
+class HasDeleted(Protocol):
+    deleted: bool
+
+
 class HasExt(Protocol):
     @property
     def ext(self): ...
@@ -55,6 +59,7 @@ class HasExtraFilesAndMetadata(HasExtraFilesPath, HasMetadata, Protocol): ...
 
 class DatasetProtocol(
     HasCreatingJob,
+    HasDeleted,
     HasExt,
     HasExtraFilesPath,
     HasFileName,

lib/galaxy/datatypes/tabular.py

@@ -134,7 +134,8 @@ class TabularData(Text):
     def displayable(self, dataset: DatasetProtocol) -> bool:
         try:
             return (
-                not dataset.dataset.purged
+                not dataset.deleted
+                and not dataset.dataset.purged
                 and dataset.has_data()
                 and dataset.state == dataset.states.OK
                 and dataset.metadata.columns > 0