[feat]: Add "Open in new tab" button next to copy button for URLs in service action results

[nachorito]

Prerequisites

• I have searched for existing issues that already suggest this feature.

Describe the Feature Request

Problem

When a service action returns a URL,
the only way to act on it is to click the copy button, switch tabs, paste, and hit enter.

For URLs that point to another service running on the same StartOS instance, the user
already has browser access — there's no reason they should have to copy-paste.

Proposed change

Next to the existing copy button on URL fields in action results, add an "open in new tab"
button (e.g. an external-link icon) that opens the URL in a new browser tab via
target="_blank" rel="noopener noreferrer".

Example

The BTCPay "Approve on BTCPay to finish connecting" dialog shows the auth URL with only
a copy button. An "open in new tab" button would let the user click straight through
to authorize.

Scope

Ideally this applies to any URL rendered in an action result.
Service actions may return links (admin panels, auth flows, status pages).

Describe the Use Case

Allows click through to links from service actions

Describe Preferred Solution

No response

Describe Alternatives

No response

Anything else?

No response