ui: tokenized assets

[Mateo-Soso]

📐 Scope & Requirements

In scope:

• Adapt the Exa App to present tokenized assets across three surfaces:
  1. Home — a new tokenized assets banner, placed in the same area as the Benefits banners.
  2. Portfolio — a new "Tokenized stocks" section.
  3. Swap — a low-liquidity warning for tokenized assets: when a user wants to buy a tokenized asset with low liquidity, show a checkbox warning that there may be a significant price impact. The checkbox is mandatory — the user cannot continue until it is checked.
     Out of scope:

Requirements:

• Home banner lives alongside the existing Benefits banners and follows the same placement/pattern.
• Portfolio gets a dedicated "Tokenized stocks" section, separate from the existing holdings.
• In Swap, the low-liquidity warning must be an explicit acknowledgment (checkbox), not a passive notice. Unchecked = the continue action stays blocked.
• Warning copy must state clearly that the trade may have a significant price impact.