fix(set due date dialog): set TabLayout background to transparent

[Haz3-jolt]

Purpose / Description

Fixes tab layout color inconsistency in set due date dialog when theme is black/dark

Fixes

• Fixes [Dark mode] Set due date dialog theme issue #19936

Approach

Sets background color of tab layout to transparent

How Has This Been Tested?

Tested on the following Android Emulators:
Pixel Tablet API 36

Before:

After:

Learning (optional, can help others)

• First encountered during Introduce ChangeNoteType Dialog #18602
• caused by commit 42450f1

Why the TabLayout background changed

• ViewBinding requires us to inflate the layout manually. In commit 42450f1, this changed who provides the LayoutInflater.
• Previously, we used setView(R.layout.dialog_set_due_date), which allows MaterialAlertDialog to inflate the layout using its dialog theme overlay.
• After migrating to ViewBinding, we now call DialogSetDueDateBinding.inflate(layoutInflater). This uses a plain inflater without the dialog’s theme overlay.
• TabLayout derives its default background color from the currently applied theme/overlay. Because the dialog overlay was no longer applied during inflation, it fell back to the app’s surface color, resulting in the visible theme-colored bar.

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[david-allison]

The fix LGTM

• Could you edit this to note the commit hash causing the issue
• Could you explain why the commit caused the issue? I don't see the issue immediately, and I'm worried I missed something

---

#19936 (comment)

• 42450f1
• chore: convert SetDueDateDialog to ViewBinding  #19483

[Haz3-jolt]

The fix LGTM

* Could you edit this to note the commit hash causing the issue

* Could you explain why the commit caused the issue? I don't see the issue immediately, and I'm worried I missed something

#19936 (comment)

* [42450f1](https://github.com/ankidroid/Anki-Android/commit/42450f1386cc21a68964dccf154d21c457ea177b)

* [chore: convert SetDueDateDialog to ViewBinding  #19483](https://github.com/ankidroid/Anki-Android/pull/19483)

Done!

[mikehardy]

all of David's requests are handled, great explanation, looks like a good fix, thanks