[StartSurface] Change the view all text size to 14sp

The feed header on start surface is using 14sp instead of 12sp as on NTP

Screenshot:
https://drive.google.com/a/google.com/file/d/1uSperMqiScVC7EeK-UfhqaVJBAHW6Uiq/view?usp=sharing

Bug: 1040242
Change-Id: Ic7c2df36c394d1513ff738187c3bb27236c2c5d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1991711
Auto-Submit: Ganggui Tang <gogerald@chromium.org>
Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Commit-Queue: Ganggui Tang <gogerald@chromium.org>
Cr-Commit-Position: refs/heads/master@{#729851}

chrome/android/features/tab_ui/java/res/layout/tasks_view_layout.xml

@@ -66,7 +66,7 @@
                 android:paddingTop="16dp"
                 android:paddingBottom="16dp"
                 android:paddingEnd="12dp"
-                android:textAppearance="@style/TextAppearance.BlueLink3"
+                android:textAppearance="@style/TextAppearance.BlueLink2"
                 android:text="@string/tab_switcher_carousel_view_all"/>
         </LinearLayout>
         <!-- TODO(crbug.com/982018): Make view stub to inflate only when needed. -->