feat: new send to wallet functionality

[effie-ms]

Which Linear task is linked to this PR?

https://linear.app/lifi-linear/issue/EMB-319/replace-send-to-wallet-input-with-inline-send-to-wallet-button

Why was it implemented this way?

1. The behaviour of SendToWalletExpandButton changes: it is not a toggle anymore. The button is visible only when wallet address is not optional and not set and leads to "Send to wallet" page instead of opening "Send to wallet" input card.

2. Adds "Required" tag to the "Send to wallet" input card.

3. useSendToWalletStore is removed: the visibility of the "Send to wallet" input card is determined from the availability of wallet address and whether it is required or not.

Visual showcase (Screenshots or Videos)

Screen.Recording.2026-04-01.at.12.48.12.mov

Checklist before requesting a review

• I have performed a self-review and testing of my code.
• This pull request is focused and addresses a single problem.

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