strings: move generic up to navigate up.

Clover/app/src/main/res/layout/controller_save_location.xml

@@ -55,7 +55,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"
                     android:gravity="center_vertical"
-                    android:text="@string/up"
+                    android:text="@string/setting_folder_navigate_up"
                     android:textSize="18sp" />
 
             </LinearLayout>

Clover/app/src/main/res/values/strings.xml

@@ -20,7 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     <string name="add">Add</string>
     <string name="close">Close</string>
     <string name="back">Back</string>
-    <string name="up">Up</string>
     <string name="ok">OK</string>
     <string name="exit">Exit</string>
     <string name="delete">Delete</string>
@@ -522,6 +521,7 @@ Re-enable this permission in the app settings if you permanently disabled it."</
 
 Re-enable this permission in the app settings if you permanently disabled it."</string>
     <string name="setting_folder_pick_ok">Choose</string>
+    <string name="setting_folder_navigate_up">Up</string>
 
 
     <!-- Theme settings -->