Fix search bar design of Explore

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

@@ -12,20 +12,18 @@
         android:layout_height="match_parent"
         android:orientation="vertical">
 
-        <android.support.design.widget.TextInputLayout
-            android:layout_marginTop="8dp"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content">
-
-            <android.support.design.widget.TextInputEditText
+        <EditText
             android:id="@+id/explore_search"
+            android:background="@color/colorPrimary"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-                android:layout_marginLeft="6dp"
-                android:layout_marginRight="6dp"
-                android:layout_marginTop="3dp"
-                android:hint="Search" />
-        </android.support.design.widget.TextInputLayout>
+            android:paddingLeft="18dp"
+            android:paddingRight="6dp"
+            android:paddingTop="3dp"
+            android:paddingBottom="15dp"
+            android:hint="Search"
+            android:textColor="@color/primaryTextColor"
+            android:textColorHint="@color/primaryTextColor"/>
 
         <android.support.v4.widget.NestedScrollView
             android:layout_width="match_parent"