fix: trust the system to check whether a file is a directory (#261)

Condition was originally introduced in 12b96e159d

Refs: https://github.com/FossifyOrg/File-Manager/issues/80

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Fixed folders showing up incorrectly as files in some cases ([#80])
 
 ## [1.2.2] - 2025-09-01
 ### Changed
@@ -58,6 +60,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [#27]: https://github.com/FossifyOrg/File-Manager/issues/27
 [#37]: https://github.com/FossifyOrg/File-Manager/issues/37
+[#80]: https://github.com/FossifyOrg/File-Manager/issues/80
 [#105]: https://github.com/FossifyOrg/File-Manager/issues/105
 [#106]: https://github.com/FossifyOrg/File-Manager/issues/106
 [#120]: https://github.com/FossifyOrg/File-Manager/issues/120

app/src/main/kotlin/org/fossify/filemanager/fragments/ItemsFragment.kt

@@ -257,7 +257,7 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
         }
 
         var lastModified = lastModifieds.remove(curPath)
-        val isDirectory = if (lastModified != null) false else file.isDirectory
+        val isDirectory = file.isDirectory
         val children = if (isDirectory && getProperChildCount) file.getDirectChildrenCount(context, showHidden) else 0
         val size = if (isDirectory) {
             if (isSortingBySize) {