Fix part of #3602: Added label for ProfilePictureActivity

[deepanshu731]

Fix part of #3602 Added label for ProfilePictureActivity.

Essential Checklist

• The PR title and explanation each start with "Fix #bugnum: " (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• Any changes to scripts/assets files have their rationale included in the PR explanation.
• The PR follows the style guide.
• The PR does not contain any unnecessary code changes from Android Studio (reference).
• The PR is made from a branch that's not called "develop" and is up-to-date with "develop".
• The PR is assigned to the appropriate reviewers (reference).

For UI-specific PRs only

If your PR includes UI-related changes, then:

• Add screenshots for portrait/landscape for both a tablet & phone of the before & after UI changes
• For the screenshots above, include both English and pseudo-localized (RTL) screenshots (see RTL guide)
• Add a video showing the full UX flow with a screen reader enabled (see accessibility guide)
• Add a screenshot demonstrating that you ran affected Espresso tests locally & that they're passing

[rt4914]

@deepanshu731 PTAL. Also please add screenshot displaying test case is passing on Espresso. (It is mentioned as last point in your PR description.)

[rt4914]

LGTM, thanks.

[BenHenning]

Thanks @deepanshu731. Just had one follow-up comment, PTAL.

[BenHenning]

Thanks @deepanshu731! The new test looks good, just had one other comment. PTAL.

[BenHenning]

Thanks @deepanshu731! LGTM.

[BenHenning]

Merging since all conversations are resolved & all approvals are present.