add field config new icons (#6996)

https://github.com/twentyhq/twenty/issues/6950
Add new icons to Object Fields Data types.

Before:

![image](https://github.com/user-attachments/assets/55697e31-841d-435e-8c70-13ff1c59268d)


After:

![image](https://github.com/user-attachments/assets/bd43f0ec-d3f7-4ecf-a95f-87a030f68e24)

![image](https://github.com/user-attachments/assets/369893a9-35be-43f8-bfcb-55149effa78a)

packages/twenty-ui/src/theme/constants/IllustrationIconDark.ts

@@ -0,0 +1,6 @@
+import { COLOR } from './Colors';
+
+export const ILLUSTRATION_ICON_DARK = {
+  color: COLOR.blue50,
+  fill: COLOR.blue70,
+};