[마이][New] 코인 메인 레이아웃 수정

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

@@ -43,14 +43,14 @@
           android:layout_marginEnd="3dp"
           android:layout_marginBottom="30dp"
           android:lineSpacingExtra="10sp"
-          android:text="@string/my_coin_detail"
           android:textColor="@color/C000000"
           android:textSize="25sp"
           app:layout_constraintBottom_toBottomOf="parent"
           app:layout_constraintEnd_toStartOf="@+id/image_view_coin"
           app:layout_constraintHorizontal_bias="0.5"
           app:layout_constraintStart_toStartOf="parent"
-          app:layout_constraintTop_toTopOf="parent"/>
+          app:layout_constraintTop_toTopOf="parent"
+          tools:text="@string/my_coin_detail"/>
 
         <ImageView
           android:id="@+id/image_view_coin"