chore: Update Android Test main screen (#301)

## Summary

- Adding check screens for XML and Compose to detect maskign regressions
- Rearrange buttons into section

<img width="402" height="810" alt="image"
src="https://github.com/user-attachments/assets/7d160d25-11c1-4887-bd51-49b21d0488e9"
/>

## How did you test this change?

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changes.
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## Are there any deployment considerations?

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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Adds XML/Compose masking benchmark and user form screens, restructures
MainActivity UI into sections, removes old activities, and refactors
capture width/height handling.
> 
> - **e2e Android app**:
>   - **New masking screens**:
> - Add `masking/ComposeMaskingActivity` with full-screen/confirmation
dialog variants, alert/toast demos, and input fields.
> - Add `masking/XMLMaskingActivity` with `activity_masking_bench.xml`
layout mirroring the Compose demo.
>   - **User form screens**:
> - Add `masking/ComposeUserFormActivity` (Compose form) and update
`masking/XMLUserFormActivity` (XML form) with expanded fields.
>   - **Main screen refactor**:
> - Reorganize `MainActivity` into sections: `Masking`, `Observability`
with composables `MaskingButtons`, `InstrumentationButtons`,
`MetricButtons`, `CustomerApiButtons`.
> - Update navigation to new `masking` activities and
`SmoothieListActivity`; remove references to `SecondaryActivity` and
`CreditCardActivity`.
>   - **Resources/Manifest**:
>     - Register new activities in `AndroidManifest.xml`.
> - Add `ic_arrow_back` drawable and dialog themes in
`values/themes.xml`.
> - Add new layouts `activity_masking_bench.xml` and update
`activity_user_form.xml`.
> - **SDK (replay)**:
> - Refactor `CaptureSource.doCapture`: rename variables and use
`viewWidth/viewHeight` consistently for bitmap creation and
`CaptureEvent.origWidth/origHeight`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
2ff581e. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: abelonogov-ld

e2e/android/app/src/main/AndroidManifest.xml

@@ -17,14 +17,24 @@
         android:usesCleartextTraffic="true"
         tools:targetApi="31" >
         <activity
-            android:name=".SecondaryActivity"
+            android:name=".masking.ComposeUserFormActivity"
             android:exported="false"
             android:label="@string/title_activity_secondary"
             android:theme="@style/Theme.AndroidObservability" />
         <activity
-            android:name=".CreditCardActivity"
+            android:name=".masking.XMLUserFormActivity"
             android:exported="false"
             android:theme="@style/Theme.AndroidObservability" />
+        <activity
+            android:name=".masking.ComposeMaskingActivity"
+            android:exported="false"
+            android:label="Compose Masking"
+            android:theme="@style/Theme.AndroidObservability" />
+        <activity
+            android:name=".masking.XMLMaskingActivity"
+            android:exported="false"
+            android:label="XML Masking"
+            android:theme="@style/Theme.AndroidObservability" />
         <activity
             android:name=".smoothie.SmoothieListActivity"
             android:exported="false"