[auto-grid] Sorting should be case-insensitive

[sissbruecker]

Describe the bug

Currently sorting is case-sensitive which results in a non-alphabetical sort if the starting letters do not match case:

Expected-behavior

Sorting should ignore case for text columns.

Reproduction

• Use react-grid-test IT
• open the CRUD view
• add an item with lower-case first name
• observe that items are not sorted alphabetically

System Info

Hilla v2.3