Added entries update states and error handling

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

@@ -39,7 +39,7 @@
             android:layout_height="wrap_content"
             android:layout_marginStart="24dp"
             android:elevation="4dp"
-            android:text="@string/sat_import"
+            android:text="@string/entries_update"
             android:textSize="18sp"
             app:layout_constraintBottom_toBottomOf="@+id/import_web"
             app:layout_constraintStart_toStartOf="parent"
@@ -94,11 +94,35 @@
             android:id="@+id/entries_recycler"
             android:layout_width="0dp"
             android:layout_height="0dp"
+            android:visibility="invisible"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/search_bar" />
 
+        <ProgressBar
+            android:id="@+id/entries_progress"
+            style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="visible"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/entries_bar" />
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/entries_error"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/entries_error"
+            android:textSize="20sp"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/entries_bar" />
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 
     <com.google.android.material.floatingactionbutton.FloatingActionButton

app/src/main/res/values-ru/strings.xml

@@ -104,5 +104,6 @@
 
     <string name="tle_source">Источник TLE</string>
     <string name="https_only">Используйте HTTPS</string>
-    <string name="sat_import">Импорт спутников</string>
+    <string name="entries_update">Обновить данные TLE:</string>
+    <string name="entries_error">Пожалуйста, обновите данные TLE</string>
 </resources>

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

@@ -118,7 +118,8 @@
     <string name="https_only">Please use HTTPS URLs only</string>
     <string name="placeholder" translatable="false">Placeholder</string>
     <string name="osmCopyright" translatable="false">Wikimedia maps | Map data © OpenStreetMap contributors</string>
-    <string name="sat_import">Import satellite data</string>
     <string name="timer_zero" translatable="false">00:00:00</string>
     <string name="timer_placeholder" translatable="false">-</string>
+    <string name="entries_update">TLE data update:</string>
+    <string name="entries_error">Please update TLE data</string>
 </resources>