Fix CopyButton 'Copied' tooltip not showing in Firefox

[JeanMarcMilletScality]

Context

Issue found on the Kasten ISV assistant summary page. The copy button did not show the "Copied !" tooltip in Firefox after the user copied content. The issue was reported on Firefox / Windows 11 (Chrome had no issue).
Ticket: https://scality.atlassian.net/browse/ZKUI-459

This issue applies to all copy button

Problem

When the user clicked copy, the button was set to disabled on success. In Firefox, disabling the button causes it to lose focus and fire onBlur on the Tooltip wrapper. The Tooltip hides on blur, so the "Copied !" message disappeared immediately and was never shown.

Changes

• Do not set disabled on success — CopyButton now only passes through props.disabled, so the button stays focusable and the tooltip remains visible.
• Disabled-like behavior during success — When copyStatus === 'success', the button gets cursor: not-allowed and opacity: 0.5 so it looks disabled.
• No-op on click during success — onClick only calls copy() when not in success state, so the button is not clickable in practice for the ~2s feedback period.
• Promise handling — navigator.clipboard.writeText() is now awaited with .then()/.catch() so success/unsupported state is set correctly (e.g. if clipboard fails in some environments).

[bert-e]

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[bert-e]

Waiting for approval

The following approvals are needed before I can proceed with the merge:

• the author

• one peer

Peer approvals must include at least 1 approval from the following list:

• @JBWatenbergScality

• @hervedombya

• @JeanMarcMilletScality

• @MonPote

• @damiengillesscality

• @ChengYanJin

• @ZiyangLinScality

[ZiyangLinScality]

Consider adding aria-disabled={isSuccess || props.disabled} to maintain accessibility semantics.

[ZiyangLinScality]

Need some unit test at lease:

• When writeText returns a rejected Promise, it should enter the unsupported state.
• Clicking in the success state should not call copy again.

[JeanMarcMilletScality]

/approve

[bert-e]

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[bert-e]

I have successfully merged the changeset of this pull request
into targetted development branches:

• ✔️ development/1.0

Please check the status of the associated issue CUI-6.

Goodbye jeanmarcmilletscality.