fix: Standardize date localization and acknowledge initial page behavior

This commit refines UI consistency and addresses user feedback:
- Standardized date formatting to use `Locale.ENGLISH` in `SimpleHourlyForecastItemView`, `SimplifiedDailyForecastItemView`, and relevant mappers. This ensures days of the week are consistently displayed in English, resolving an issue where they appeared in the device's system language.
- Acknowledged user feedback regarding the app defaulting to the geolocation page on launch; this remains the intended design to prioritize immediate local weather if permissions are granted.
- Builds upon a stable test suite, ensuring these UI refinements are integrated reliably.

The goal is to enhance UI predictability for users with non-English device settings.

Author: ArtemZarubin

app/src/main/java/com/artemzarubin/weatherml/data/mapper/WeatherMappers.kt

@@ -76,7 +76,7 @@ fun mapToWeatherDataBundle(
     val dailyForecastsDomain = mutableListOf<DailyForecast>()
     val groupedByDay = forecastResponseDto.list?.groupBy {
         val date = Date((it.dateTime ?: 0L) * 1000L)
-        SimpleDateFormat("yyyyMMdd", Locale.getDefault()).format(date)
+        SimpleDateFormat("yyyyMMdd", Locale.ENGLISH).format(date)
     }
 
     groupedByDay?.values?.take(7)?.forEach { dailyItems -> // Take up to 7 days

app/src/main/java/com/artemzarubin/weatherml/ui/MainActivity.kt

@@ -211,7 +211,7 @@ fun CurrentWeatherMainSection(
         Text(
             text = currentWeather.weatherDescription.replaceFirstChar {
                 if (it.isLowerCase()) it.titlecase(
-                    Locale.getDefault()
+                    Locale.ENGLISH
                 ) else it.toString()
             },
             style = MaterialTheme.typography.bodyLarge
@@ -315,7 +315,7 @@ fun SimpleHourlyForecastItemView(
         Text(
             SimpleDateFormat(
                 "EEE HH:mm",
-                Locale.getDefault()
+                Locale.ENGLISH
             ).format(Date(hourlyForecast.dateTimeMillis)),
             style = MaterialTheme.typography.labelSmall
         )
@@ -364,7 +364,7 @@ fun SimplifiedDailyForecastItemView(
             tomorrowCalendar.get(Calendar.YEAR) == forecastCalendar.get(Calendar.YEAR) &&
                     tomorrowCalendar.get(Calendar.DAY_OF_YEAR) == forecastCalendar.get(Calendar.DAY_OF_YEAR) -> "Tomorrow"
 
-            else -> SimpleDateFormat("EEE, d/MM", Locale.getDefault()).format(forecastDate)
+            else -> SimpleDateFormat("EEE, d/MM", Locale.ENGLISH).format(forecastDate)
         }
     }
 
@@ -435,7 +435,7 @@ fun SimplifiedDailyForecastItemView(
 fun formatUnixTimestampToDateTime(timestampMillis: Long, timezoneOffsetSeconds: Int): String {
     if (timestampMillis == 0L) return "N/A"
     val date = Date(timestampMillis)
-    val sdf = SimpleDateFormat("MMM dd, HH:mm", Locale.getDefault())
+    val sdf = SimpleDateFormat("MMM dd, HH:mm", Locale.getDefault()) or Locale.ENGLISH
     val customTimeZone = TimeZone.getTimeZone("GMT")
     customTimeZone.rawOffset = timezoneOffsetSeconds * 1000
     sdf.timeZone = customTimeZone
@@ -445,7 +445,7 @@ fun formatUnixTimestampToDateTime(timestampMillis: Long, timezoneOffsetSeconds:
 fun formatUnixTimestampToTime(timestampMillis: Long, timezoneOffsetSeconds: Int): String {
     if (timestampMillis == 0L) return "N/A"
     val date = Date(timestampMillis)
-    val sdf = SimpleDateFormat("HH:mm", Locale.getDefault())
+    val sdf = SimpleDateFormat("HH:mm", Locale.ENGLISH)
     val tz = TimeZone.getTimeZone("GMT")
     tz.rawOffset = timezoneOffsetSeconds * 1000
     sdf.timeZone = tz