Fix the loading state of the traffic chart

[irfano]

This fixes the loading state of the chart on the TRAFFIC tab.
Before, UiModelMapper was mapping models to Success even though the state was LOADING. This caused bars to animate with the current data unnecessarily before animating with the new data.

before video

before.webm

after video

after.webm

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To Test:

1. Log in.
2. Open the TRAFFIC tab from "My Site → Stats".
3. Change the selected date by tapping the left arrow.
4. Verify that there is no unnecessary loading animation for bars.
5. Navigate back.
6. Open "Me → Debug settings"
7. Switch stats_traffic_tab off.
8. Repeat 2-3.
9. Verify there is no issue with loading graphs and stats cards.

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Regression Notes

1. Potential unintended areas of impact

   • Disabled state of stats_traffic_tab feature.

2. What I did to test those areas of impact (or what existing automated tests I relied on)

   • Tested manually.

3. What automated tests I added (or what prevented me from doing so)

   • This simple logic change is not worth automated tests.

---

PR Submission Checklist:

• I have completed the Regression Notes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

---

Testing Checklist:

• WordPress.com sites and self-hosted Jetpack sites.
• Portrait and landscape orientations.
• Light and dark modes.
• Fonts: Larger, smaller and bold text.
• High contrast.
• Talkback.
• Languages with large words or with letters/accents not frequently used in English.
• Right-to-left languages. (Even if translation isn’t complete, formatting should still respect the right-to-left layout)
• Large and small screen sizes. (Tablet and smaller phones)
• Multi-tasking: Split screen and Pop-up view. (Android 10 or higher)

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 24.4. This milestone is due in less than 4 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20390-c069412
	Commit	c069412
	Direct Download	jetpack-prototype-build-pr20390-c069412.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20390-c069412
	Commit	c069412
	Direct Download	wordpress-prototype-build-pr20390-c069412.apk

Note: Google Login is not supported on these builds.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 40.15%. Comparing base (4dfebc9) to head (c069412).

Files	Patch %	Lines
...ss/android/ui/stats/refresh/lists/UiModelMapper.kt	0.00%	14 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            trunk   #20390   +/-   ##
=======================================
  Coverage   40.15%   40.15%           
=======================================
  Files        1476     1476           
  Lines       68275    68272    -3     
  Branches    11329    11329           
=======================================
  Hits        27417    27417           
+ Misses      38349    38346    -3     
  Partials     2509     2509           

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[ravishanker]

Thanks for taking care of this 👍