Insufficient Funds notification text needs update

[LaurenWags]

Description

Found while testing #1479

Insufficient Funds notification references Brave Payments, this text should be updated.

@mandar-brave please provide text for notification.

Steps to Reproduce

1. Launched Brave with - -rewards=reconcile-interval=4340
2. Enable Rewards
3. Visit a site.
4. Wait 15-20 minutes

Actual result:

Notification displays with text referencing Brave Payments:

Expected result:

Notification should probably reference Brave Rewards, but @mandar-brave should provide text to be used.

Reproduces how often:

easily

Brave version (brave://version info)

Brave	0.60.23 Chromium: 72.0.3626.96 (Official Build) beta(64-bit)
Revision	84098ee7ef8622a9defc2ef043cd8930b617b10e-refs/branch-heads/3626@{#836}
OS	Mac OS X

Reproducible on current release:

• Does it reproduce on brave-browser dev/beta builds? yes

Website problems only:

• Does the issue resolve itself when disabling Brave Shields? n/a
• Is the issue reproducible on the latest version of Chrome? n/a

Additional Information

[btlechowski]

Also reproduced on Ubuntu 17.10

Brave	0.60.28 Chromium: 72.0.3626.96 (Official Build) beta (64-bit)
Revision	84098ee7ef8622a9defc2ef043cd8930b617b10e-refs/branch-heads/3626@{#836}
OS	Linux

[btlechowski]

Verification passed on

Brave	0.62.17 Chromium: 73.0.3683.39 (Official Build) dev (64-bit)
Revision	cc53b0e12fcaf42e4bab8d6c23bd4fb7aae99f6c-refs/branch-heads/3683@{#413}
OS	Windows 7 Service Pack 1 Build 7601.24312

Used test plan from brave/brave-core#1723

Verified passed with

Brave	0.62.28 Chromium: 73.0.3683.75 (Official Build) beta(64-bit)
Revision	909ee014fcea6828f9a610e6716145bc0b3ebf4a-refs/branch-heads/3683@{#803}
OS	Mac OS X

Used test plan from brave/brave-core#1723

[srirambv]

Seeing Brave Payments on

Brave	0.62.32 Chromium: 73.0.3683.75 (Official Build) beta(64-bit)
Revision	909ee014fcea6828f9a610e6716145bc0b3ebf4a-refs/branch-heads/3683@{#803}
OS	Linux

cc: @kjozwiak to try on his Linux machine

[srirambv]

Follow up issue logged for linux #3786

[kjozwiak]

cc: @kjozwiak to try on his Linux machine

Reproduced and commented results under #3786 (comment).

[srirambv]

Marking as Windows and macOS as its still failing on Linux and followup issue(#3786 ) for Linux is logged