Log Message:
py-textual: update to 0.79.1.

0.79.1

    Fixed broken updates when non active screen changes #4957

0.79.0

This release optimizes query_one and changes the semantics a little.
query_one will no longer raise a TooManyMatches if there is more
than a single widget matching the selector. For the old behavior,
you can use the new query_exactly_one method.

0.78.0

This release optimizes query_one and changes the semantics a little.
query_one will no longer raise a TooManyMatches if there is more
than a single widget matching the selector. For the old behavior,
you can use the new query_exactly_one method.