docs: Add isSliced option to Address and remove slice logic from Name

[cpcramer]

What changed? Why? Tracking issue: https://github.com/coinbase/onchainkit/issues/732

Part	Description	Status
1	[Part 1] feat: Add isSliced option to Address and remove slice logic from Name	✅
2	[Part 2] docs: Add isSliced option to Address and remove slice logic from Name	In Progress

Add the isSliced option to the Address component. This allows the component to render the full users address when set to false.

Update the Name component to remove slice logic and return null if the ENS name is not found.

• Add documentation examples to show the false case for the Address component.
• Update displayed examples on the Name and Address docs page to make them easier to read in dark mode.
• Add sub sections to the Name and Address pages.

Notes to reviewers

How has it been tested? Address page:

Name page:

Added sub sections to Address and Name

Improved Name example visibility: Before

After

Improved Address example visibility: Before

After