make e2e tests that run on internal builds compatible with new visual design (#6139)

Task/Issue URL:
https://app.asana.com/1/137249556945/project/1208671518894266/task/1210381345437646?focus=true

### Description
Adapts the code and E2E test suite that relies on internal builds to
execute correctly with the new visual design.

Author: LukasPaczos

.maestro/ads_preview_flows/1-_design-system-components.yaml

@@ -11,6 +11,7 @@ tags:
 
         - runFlow: ../shared/skip_all_onboarding.yaml
 
+        - hideKeyboard
         - tapOn:
             id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
         - tapOn:

.maestro/custom_tabs/custom_tabs_navigation.yaml

@@ -27,6 +27,7 @@ tags:
       - tapOn: "next"
       - assertVisible:
           text: ".*Try a search!.*"
+      - hideKeyboard
       - tapOn:
           id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
       - tapOn:

.maestro/custom_tabs/custom_tabs_navigation_new_tab.yaml

@@ -27,6 +27,7 @@ tags:
       - tapOn: "next"
       - assertVisible:
           text: ".*Try a search!.*"
+      - hideKeyboard
       - tapOn:
           id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
       - tapOn:

.maestro/shared/open_bookmarks.yaml

@@ -1,5 +1,6 @@
 appId: com.duckduckgo.mobile.android
 ---
+- hideKeyboard
 - tapOn:
       id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
 - tapOn: "Bookmarks"

.maestro/shared/open_sync_dev_settings_screen.yaml

@@ -1,5 +1,6 @@
 appId: com.duckduckgo.mobile.android
 ---
+- hideKeyboard
 - tapOn:
     id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
 - tapOn: "Settings"

.maestro/shared/open_sync_screen.yaml

@@ -1,5 +1,6 @@
 appId: com.duckduckgo.mobile.android
 ---
+- hideKeyboard
 - tapOn:
     id: "com.duckduckgo.mobile.android:id/browserMenuImageView"
 - tapOn: "Settings"

app/src/main/res/layout/view_browser_navigation_bar.xml

@@ -140,7 +140,7 @@
             android:background="@drawable/selectable_item_experimental_background">
 
             <ImageView
-                android:id="@+id/menuIconImageView"
+                android:id="@+id/browserMenuImageView"
                 android:layout_width="@dimen/bottomNavIcon"
                 android:layout_height="@dimen/bottomNavIcon"
                 android:layout_gravity="center"