feature #511 Adjust scroll position automatically.

Author: toastkidjp

editor/src/main/java/jp/toastkid/editor/view/EditorTabView.kt

@@ -297,11 +297,9 @@ fun EditorTabView(path: String?, initialScrolled: Int, modifier: Modifier) {
         viewModel.openExitDialog()
     }
 
-    /* TODO
     LaunchedEffect(viewModel.verticalScrollState().value) {
         viewModel.adjustLineNumberState()
     }
-    */
 
     LaunchedEffect(viewModel.content()) {
         snapshotFlow(viewModel::calculateConversionTrigger)

editor/src/main/java/jp/toastkid/editor/view/EditorTabViewModel.kt

@@ -111,6 +111,10 @@ class EditorTabViewModel {
 
     fun lineNumberScrollState() = lineNumberScrollState
 
+    suspend fun adjustLineNumberState() {
+        lineNumberScrollState.scrollTo(verticalScrollState.value)
+    }
+
     fun onClickLineNumber(it: Int) {
         val multiParagraph = lastParagraph ?: return