feat(settings): rename Import button to Custom URL; bump to 4.4.8

The online update always pulls every preset Celestrak/amsat URL and
the custom URL lived hidden behind the "Import" dialog's toggle. The
user wants a discoverable entry point to edit the custom source URLs.

Rename the data card button "Import" -> "Custom URL" (en: Custom URL,
zh: 自定义URL, tr: Özel URL). The existing dialog already hosts both
URL text fields (TLE + transceivers) and the file-import buttons, so
no dialog changes are needed - the import feature stays inside, as
the user requested.

Version bump per fork convention (feature change): 4.4.7 -> 4.4.8,
versionCode 447 -> 448. v4.4.7 release stays downloadable.

What's-new dialog updated in all three locales with this change.

Verified: settings + app compile, unit tests unaffected.

core/presentation/src/main/res/values-tr/strings.xml

@@ -56,6 +56,7 @@
         \n\n* Roaming sayfası renkleri uygulama temasını takip eder - kırmızı gece modunda tamamen görünür
         \n\n* Ayarlar: sıkışan anahtar satırları ve teşekkür aralığı düzeltildi
         \n\n* Uygulama adı artık Look4Sat Pro
+        \n\n* Ayarlar: "İçe aktar" düğmesi "Özel URL" olarak yeniden adlandırıldı - TLE/alıcı-verici kaynak URL'leri doğrudan düzenlenebilir
     </string>
 
     <!-- Radar screen -->
@@ -137,7 +138,7 @@
     <string name="prefs_data_entries">Uydular: %s</string>
     <string name="prefs_data_radios">Transceiver\'lar: %s</string>
     <string name="prefs_data_update">Güncelle</string>
-    <string name="prefs_data_import">İçe aktar</string>
+    <string name="prefs_data_import">Özel URL</string>
     <string name="prefs_data_clear">Temizle</string>
     <string name="prefs_data_clear_success">Veriler başarıyla temizlendi</string>
     <string name="prefs_data_update_success">Güncelleme başarıyla tamamlandı</string>

core/presentation/src/main/res/values-zh/strings.xml

@@ -46,6 +46,7 @@
         \n\n* 漫游页配色跟随应用主题，红色夜间模式下清晰可见
         \n\n* 设置：修复开关行挤压与感谢列表间距
         \n\n* 应用名现为 Look4Sat Pro
+        \n\n* 设置：导入文件按钮更名为自定义URL，可直接编辑 TLE/收发机数据源地址
     </string>
 
     <!-- Radar screen -->
@@ -119,7 +120,7 @@
     <string name="prefs_data_entries">卫星：%s</string>
     <string name="prefs_data_radios">收发器：%s</string>
     <string name="prefs_data_update">在线更新</string>
-    <string name="prefs_data_import">导入文件</string>
+    <string name="prefs_data_import">自定义URL</string>
     <string name="prefs_data_clear">清空</string>
     <string name="prefs_data_clear_success">数据清空成功</string>
     <string name="prefs_data_update_success">更新成功</string>

core/presentation/src/main/res/values/strings.xml

@@ -58,6 +58,7 @@
         \n\n* Roaming page colors follow the app theme - fully visible in red night mode
         \n\n* Settings: fixed squeezed toggle rows and credits spacing
         \n\n* App name is now Look4Sat Pro
+        \n\n* Settings: "Import" button renamed to "Custom URL" - edit TLE/transceiver source URLs directly
     </string>
 
     <!-- Radar screen -->
@@ -149,7 +150,7 @@
     <string name="prefs_data_entries">Satellites: %s</string>
     <string name="prefs_data_radios">Transceivers: %s</string>
     <string name="prefs_data_update">Update</string>
-    <string name="prefs_data_import">Import</string>
+    <string name="prefs_data_import">Custom URL</string>
     <string name="prefs_data_clear">Clear</string>
     <string name="prefs_data_clear_success">Data was cleared successfully</string>
     <string name="prefs_data_update_success">Update completed successfully</string>

gradle/libs.versions.toml

@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "447"
+appVersionCode = "448"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.4.7"
+appVersionName = "4.4.8"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry