"Not enough [[currency]]" shown in One-Time Tipping UI

[jonathansampson]

Description

One-time tipping UI doesn't show "tokens" in message.

Steps to Reproduce

Attempt to issue a one-time tip with insufficient funds.

Actual result:

Expected result:

Named token should be replaced with appropriate locale string.

Reproduces how often:

Easily.

Brave version (brave://version info)

Brave	1.24.29 Chromium: 90.0.4430.41 (Official Build) nightly (64-bit)
Revision	e9c92b1eaca8487e212f3f6bc081fdb6d4863759-refs/branch-heads/4430@{#723}

Version/Channel Information:

• Can you reproduce this issue with the current release? No.
• Can you reproduce this issue with the beta channel? No.
• Can you reproduce this issue with the nightly channel? Yes.

[zenparsing]

Duplicate of #14973 (fixed in brave/brave-core#8368)