Add a shared money formatting utility

[sshdopey]

Context

Money formatting is duplicated as formatMoney/formatFunded in admin and as inline toLocaleString calls in the meter and creator screens.

Scope

• Create one money formatting util and adopt it across the screens (coordinating with the locale-aware formatting work).

Acceptance criteria

• One utility formats money across the app.

Pointers

src/screens/admin/AdminConsole.tsx, src/components/LiquidityMeter.tsx, src/screens/creator/*.

[fadesany]

@fadesany has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello maintainer, i would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @fadesany to this issue.

[brendaamareco]

@brendaamareco has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hey, I'd like to take this one. I'll consolidate the duplicated formatting calls into a single shared utility across the affected screens

ℹ️ Repo Maintainers: To accept this application, review their application or assign @brendaamareco to this issue.