General improvements (#149)

* Improved eraser hit detection and added horizontal scrolling to AnnotationDock

* fix: lock scroll tracking during PDF rotation to prevent page jumping in vertical mode

* Implemented a multi-tab reading system for the PDF viewer.

* Redesigned the About dialog on homescreen.

* improved bulk file import support

* Implemented document caching and improved tab restoration in the PDF viewer.

* Implemented native link detection and information extraction in `pdfium_bridge.cpp` and integrated it into `PdfPageComposable.kt`. This includes adding `getLinkInfoAtPoint` to `NativePdfiumBridge` to handle URI, GoTo, and RemoteGoTo/Launch actions, and updating the tap gesture logic to prioritize native link handling.

* Fixed index bounds and layout padding calculation in PdfViewerScreen

app/src/main/java/com/aryan/reader/LibraryScreen.kt

@@ -199,9 +199,7 @@ fun LibraryScreen(
         if (isContextualModeActive) {
             viewModel.clearContextualAction()
         }
-        uris.forEach { uri ->
-            viewModel.onFileSelected(uri, isFromRecent = false)
-        }
+        viewModel.onFilesSelected(uris)
     }
 
     val fallbackFilePickerLauncher = rememberLauncherForActivityResult(
@@ -210,9 +208,7 @@ fun LibraryScreen(
         if (isContextualModeActive) {
             viewModel.clearContextualAction()
         }
-        uris.forEach { uri ->
-            viewModel.onFileSelected(uri, isFromRecent = false)
-        }
+        viewModel.onFilesSelected(uris)
     }
 
     val onSelectFileClick = {