Fix MediaStore DATE_ADDED/DATE_MODIFIED

They are in seconds not milliseconds as per the documentation.

app/src/main/kotlin/com/hippo/ehviewer/ui/reader/PageActions.kt

@@ -97,7 +97,7 @@ suspend fun save(page: ReaderPage) {
         val values = ContentValues()
         val realPath: String
         values.put(MediaStore.MediaColumns.DISPLAY_NAME, filename)
-        values.put(MediaStore.Images.Media.DATE_ADDED, Clock.System.now().toEpochMilliseconds())
+        values.put(MediaStore.MediaColumns.DATE_ADDED, Clock.System.now().epochSeconds)
         values.put(MediaStore.MediaColumns.MIME_TYPE, mimeType)
         if (isAtLeastQ) {
             realPath = Environment.DIRECTORY_PICTURES + File.separator + AppConfig.APP_DIRNAME

app/src/main/kotlin/com/hippo/files/AndroidFileSystem.kt

@@ -127,7 +127,8 @@ class AndroidFileSystem(context: Context) : FileSystem() {
         }
 
         val uri = path.toUri()
-        val projection = if (uri.authority == MediaStore.AUTHORITY) {
+        val isMediaUri = uri.authority == MediaStore.AUTHORITY
+        val projection = if (isMediaUri) {
             arrayOf(MediaStore.MediaColumns.MIME_TYPE, MediaStore.MediaColumns.DATE_MODIFIED)
         } else {
             arrayOf(Document.COLUMN_MIME_TYPE, Document.COLUMN_LAST_MODIFIED)
@@ -138,7 +139,7 @@ class AndroidFileSystem(context: Context) : FileSystem() {
                 if (!c.moveToNext()) return null
 
                 val mimeType = c.getString(0)
-                val lastModified = c.getLongOrNull(1)
+                val lastModified = c.getLongOrNull(1)?.let { if (isMediaUri) it * 1000 else it }
                 val isDirectory = mimeType == Document.MIME_TYPE_DIR
 
                 FileMetadata(

app/src/main/kotlin/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -433,7 +433,7 @@ class ReaderActivity : EhActivity() {
                 val resolver = contentResolver
                 val values = ContentValues()
                 values.put(MediaStore.MediaColumns.DISPLAY_NAME, filename)
-                values.put(MediaStore.Images.Media.DATE_ADDED, Clock.System.now().toEpochMilliseconds())
+                values.put(MediaStore.MediaColumns.DATE_ADDED, Clock.System.now().epochSeconds)
                 values.put(MediaStore.MediaColumns.MIME_TYPE, mimeType)
                 if (isAtLeastQ) {
                     realPath = Environment.DIRECTORY_PICTURES + File.separator + AppConfig.APP_DIRNAME