Update budget recommendation text

[kt-12]

Changes proposed in this Pull Request:

Closes #2600 .

Text updated to reflect the change. Check screenshot.

Screenshots:

Multiple Counties selected

Single country selected

Detailed test instructions:

1. On "Create your paid campaign" page select single country
2. Check if the text change is reflected.
3. Now select an additional country and see if the text is same as shown in the screenshot above.

Additional details:

Changelog entry

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.6%. Comparing base (24044c5) to head (b581d13).
Report is 249 commits behind head on feature/2459-campaign-creation-flow.

Additional details and impacted files

@@                           Coverage Diff                            @@
##             feature/2459-campaign-creation-flow   #2629      +/-   ##
========================================================================
- Coverage                                   64.7%   62.6%    -2.1%     
========================================================================
  Files                                        793     319     -474     
  Lines                                      22967    5063   -17904     
  Branches                                    1231    1232       +1     
========================================================================
- Hits                                       14865    3171   -11694     
+ Misses                                      7929    1718    -6211     
- Partials                                     173     174       +1     

Flag	Coverage Δ
js-unit-tests	62.6% <ø> (-<0.1%)	⬇️
php-unit-tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...-ads/budget-section/budget-recommendation/index.js	4.0% <ø> (ø)

... and 494 files with indirect coverage changes

[asvinb]

LGTM @kt-12

[ankitguptaindia]

Changes Look good and working as expected. ✅

Recording.883.mp4

[eason9487]

Hi @kt-12, the change looks good.

Could you make this PR not include file changes that don't belong to it?

[kt-12]

@eason9487 I am unsure how those commits ended up here. This was not the case till after 10upCR. I have removed those commits. It's good for WooCr review now.

[eason9487]

LGTM