chore(studio): clarify dedicated pooler compatibility (#43320)

What kind of change does this PR introduce?

UI clarification.

What is the current behavior?

Our messaging around the compatibility of:

Dedicated pooler
Shared pooler

…in conjunction with the following connection types:

IPv4
IPv6
Direct connection

…is hard to parse.

What is the new behavior?

Copywriting clarifications to all of the above. Plus:

Broader copywriting clarifications to IPV4SidePanel
Replace deprecated Radio component with RadioGroupItem_Shadcn_ as the former has little-to-no visual difference between unselected and selected states
Fixed SidePanel header gap and button labelling

Additional context

Before	After
<img width=”1024” height=”563” alt=”AWS Healthy Toolshed
Supabase-4587771A-83A2-40E8-845B-256CE7E1A7DB”
src=”https://github.com/user-attachments/assets/09591fa1-48b8-4f3c-aaef-733af8dbdc9a"
/>	<img width=”1024” height=”563” alt=”AWS Healthy Toolshed
Supabase-D56A2209-7421-43C2-A7C1-6C6965B3F008”
src=”https://github.com/user-attachments/assets/13a05e51-02a5-486a-9549-4c5fe049c65a"
/>
<img width=”1024” height=”563” alt=”Add ons
Supabase-10CC55BC-C3D8-4E40-9F73-31FFE8D7F42A”
src=”https://github.com/user-attachments/assets/73e206dc-58a3-4356-8e31-cf2ad74383f8"
/>	<img width=”1024” height=”563” alt=”Add ons
Supabase-6311B7FE-4291-4982-968E-5EDBA76DE519”
src=”https://github.com/user-attachments/assets/503667ef-9b36-4d62-9872-53ac6b32f56f"
/>

Co-authored-by: Joshen Lim joshenlimek@gmail.com

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