global: rename StatisticsActivity to LongTermStatisticsActivity

Make way for a future ShortTermStatisticsActivity.

app/src/main/AndroidManifest.xml

@@ -31,7 +31,7 @@
             android:label="@string/settings_title"
             android:theme="@style/Theme.LunaTracker"/>
         <activity
-            android:name=".StatisticsActivity"
+            android:name=".LongTermStatisticsActivity"
             android:label="@string/statistics_title"
             android:theme="@style/Theme.LunaTracker"/>
     </application>

app/src/main/java/it/danieleverducci/lunatracker/LongTermStatisticsActivity.kt

@@ -35,7 +35,7 @@ import java.util.Locale
 import kotlin.math.max
 import kotlin.math.min
 
-class StatisticsActivity : AppCompatActivity() {
+class LongTermStatisticsActivity : AppCompatActivity() {
     var lastToastShown = 0L
 
     lateinit var barChart: BarChart
@@ -767,7 +767,7 @@ class StatisticsActivity : AppCompatActivity() {
             override fun onItemSelected(parent: AdapterView<*>?, view: View?, pos: Int, id: Long) {
                 if (pos >= arrayValues.size) {
                     Toast.makeText(
-                        this@StatisticsActivity,
+                        this@LongTermStatisticsActivity,
                         "pos out of bounds: $arrayValues", Toast.LENGTH_SHORT
                     ).show()
                     return
@@ -784,7 +784,7 @@ class StatisticsActivity : AppCompatActivity() {
     }
 
     companion object {
-        const val TAG = "StatisticsActivity"
+        const val TAG = "LongTermStatisticsActivity"
 
         // 15 min steps
         const val SLEEP_PATTERN_GRANULARITY = 15 * 60

app/src/main/java/it/danieleverducci/lunatracker/MainActivity.kt

@@ -1359,7 +1359,7 @@ class MainActivity : AppCompatActivity() {
             // Add statistics (hard coded)
             contentView.findViewById<View>(R.id.button_statistics).setOnClickListener {
                 if (logbook != null && !pauseLogbookUpdate) {
-                    val i = Intent(applicationContext, StatisticsActivity::class.java)
+                    val i = Intent(applicationContext, LongTermStatisticsActivity::class.java)
                     i.putExtra("LOOGBOOK_NAME", logbook!!.name)
                     startActivity(i)
                 } else {