desing: change website and stores screens copy

[Mateo-Soso]

Reposition user-facing speech from "crypto" to "digital assets" — store listings + website

📐 Scope & Requirements

In scope:

• Shift the user-facing speech from crypto to digital assets on two surfaces, wording and imagery both:
  • App Store + Google Play listings: subtitle/short description, long description, keyword field, screenshot captions and screenshot artwork, feature graphic.
  • Website (exactly.app): hero, section headers, body copy, CTAs, illustrations, product mockups, OG/social preview images.
• Term mapping table: every current term → its replacement → where it appears. Signed off before design work starts, and the source of truth for both surfaces.

Out of scope:

• In-app copy and in-app visuals. The Exa App itself is not touched by this issue.
• Product, feature or flow changes. This is speech and imagery only.
• Legal copy, T&C, and risk disclosures.
• Help center articles (Intercom) and CS macros.
• Protocol docs (docs.exact.ly).
• Copy surfaced inside the Uphold app — requires Uphold marketing sign-off, separate track.

Requirements:

• "Digital assets" replaces the positioning language, not technical terms where precision is required. USDC, on-chain, self-custodial wallet, stablecoin stay as-is where they are factually the right word.