Fixes for the new update() (#104)

* update(): remove redundant code, fix some bugs and add tests

* make update() work well when indices have duplicates

- all tests now also test with duplicated entries
- streamline update() to remove redundant code, duplicated calcuations
- fix bugs and make it pass all tests

* fix inserting modalities

* fix deleting modalities

* remove obsolete asserts

* more comprehensive tests and fixes for _update_attr()

* add test for extremely duplicated names

* add tests for dtype

* deduplicate processing of the map column

* deduplicate reordering of data_mod and attrm

* remove unnecessary boolean coercion

* use inner functions

* silence ruff false positives

* minor simplification

Author: ilia-kats

pyproject.toml

@@ -24,6 +24,7 @@ classifiers = [
 ]
 dependencies = [
     "anndata >= 0.10.8",
+    "pandas >= 1.4.0"
 ]
 dynamic = ["version"]