Update link identity verification message template

[kaylawangnow]

Context

The proof message in the Twitter and Discord verification right now is now reader friendly, user might feel unhappy sharing it in public.

Task

In the Twitter and Discord verification, please add some copy before the code in the proof message
Twitter:
Verifying my Twitter account in Litentry Trusted Execution Environment, and my proof is: {code}
Discord:
Verifying my Discord account in Litentry Trusted Execution Environment, and my proof is: {code}

Acceptance criteria

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✔️ Please set appropriate labels and assignees if applicable.

[Kailai-Wang]

Some discussions were done here.

[kaylawangnow]

Let's put this requirement on hold since we don't have consensus yet:

Pro:
User get to share more sensible post on social media

Con:
It makes these messages more tractable that makes attackers easier to guess who is whom
thread here https://litentry.slack.com/archives/C03E79EU50T/p1670580728984629?thread_ts=1669366524.811889&cid=C03E79EU50T

[Kailai-Wang]

Priority lowered.

[github-actions]

❗ This issue is stale because it has been open for 60 days with no activity.
Remove Stale label or update it, otherwise this issue will be closed in 7 days.
@litentry/parachain