de-emphasize input in Duck.ai onboarding demo

[LukasPaczos]

Task/Issue URL: https://app.asana.com/1/137249556945/project/1208671518894266/task/1215914551889857?focus=true
Tech Design URL (if applicable):

Description

De-emphasize input in Duck.ai onboarding demo.

Steps to test this PR

• Apply this diff

diff --git a/app/src/main/java/com/duckduckgo/app/onboarding/CustomAiOnboardingStore.kt b/app/src/main/java/com/duckduckgo/app/onboarding/CustomAiOnboardingStore.kt
index 9da0ed066d..d75613086b 100644
--- a/app/src/main/java/com/duckduckgo/app/onboarding/CustomAiOnboardingStore.kt
+++ b/app/src/main/java/com/duckduckgo/app/onboarding/CustomAiOnboardingStore.kt
@@ -101,6 +101,7 @@ class CustomAiOnboardingStoreImpl @Inject constructor(
     }
 
     override suspend fun resolve() = resolveMutex.withLock {
+        return@withLock true
         withContext(dispatcherProvider.io()) {
             // Ensure the install referrer (and therefore the processing function) has resolved before reading.
             withTimeoutOrNull(MAX_REFERRER_WAIT_TIME_MS) { referrerStateListener.get().waitForReferrerCode() }
@@ -118,6 +119,7 @@ class CustomAiOnboardingStoreImpl @Inject constructor(
     }
 
     override suspend fun isEnabled(): Boolean = resolveMutex.withLock {
+        return@withLock true
         withContext(dispatcherProvider.io()) {
             preferences.getBoolean(PREFS_KEY_ENABLED, false)
         }

• Clean install the app
• Go through the onboarding until reaching the Duck.ai demo
• Verify the elevation is removed and a small stroke is applied
• Finish onboarding
• Open Duck.ai
• Verify the full-size shadow is applied

UI changes

Before	After

---

Note

Low Risk
Localized UI styling in an existing lock/unlock path; no auth, data, or submission logic changes.

Overview
Extends setInteractionLocked on the native Duck.ai input widget so onboarding (and any other interaction lock) de-emphasizes the omnibar input, not only dimming controls and blocking touches.

When locked, the widget now finds the wrapping inputModeWidgetCard on widgetRoot, stores its current elevation (top vs bottom omnibar use different values), sets elevation to 0, and applies a 1dp stroke tinted with the background attribute so the field reads flatter and less prominent. Unlock restores the saved elevation and clears the stroke.

Adds getColorFromAttr / toPx helpers for that stroke styling.

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