Fix null safety bugs and resource leak

app/src/main/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/shop_detail/ShopDetailView.kt

@@ -361,7 +361,7 @@ private fun TopAppBar(
       IconButton(
         onClick = {
           if (uiState.success) {
-            onSettingsClick(uiState.shop.getData()?.id!!)
+            uiState.shop.getData()?.id?.let { onSettingsClick(it) }
           }
         },
       ) {

app/src/main/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/shop_settings/ShopSettingsView.kt

@@ -169,7 +169,7 @@ private fun ShopSettingsContentView(
       dialogTitle = stringResource(R.string.are_you_sure),
       confirmButtonTitle = stringResource(R.string.title_reset_number_tags),
       onDismissRequest = { isShowingResetConfirmationDialog = false },
-      onConfirmation = { viewModel.resetShop(uiState.shop.getData()?.id!!) },
+      onConfirmation = { uiState.shop.getData()?.id?.let { viewModel.resetShop(it) } },
       icon = Icons.Outlined.AddAlert,
     )
   }
@@ -179,7 +179,7 @@ private fun ShopSettingsContentView(
       dialogTitle = stringResource(R.string.are_you_sure),
       confirmButtonTitle = stringResource(R.string.title_delete_shop),
       onDismissRequest = { isShowingDeleteConfirmationDialog = false },
-      onConfirmation = { viewModel.deleteShop(uiState.shop.getData()?.id!!) },
+      onConfirmation = { uiState.shop.getData()?.id?.let { viewModel.deleteShop(it) } },
       icon = Icons.Outlined.AddAlert,
     )
   }
@@ -230,7 +230,7 @@ private fun ShopSettingsContentView(
               )
             },
             modifier = Modifier
-              .clickable { onShowBasicSettingsClick(uiState.shop.getData()?.id!!) },
+              .clickable { uiState.shop.getData()?.id?.let { onShowBasicSettingsClick(it) } },
           )
 
           HorizontalDivider()
@@ -265,7 +265,7 @@ private fun ShopSettingsContentView(
               )
             },
             modifier = Modifier
-              .clickable { onShowItemTagListClick(uiState.shop.getData()?.id!!) },
+              .clickable { uiState.shop.getData()?.id?.let { onShowItemTagListClick(it) } },
           )
 
           HorizontalDivider()
@@ -300,7 +300,7 @@ private fun ShopSettingsContentView(
               )
             },
             modifier = Modifier
-              .clickable { onShowNumberTagsWebpageListClick(uiState.shop.getData()?.id!!) },
+              .clickable { uiState.shop.getData()?.id?.let { onShowNumberTagsWebpageListClick(it) } },
           )
 
           HorizontalDivider()

app/src/main/kotlin/com/nativeapptemplate/nativeapptemplatefree/utils/Utility.kt

@@ -116,15 +116,10 @@ object Utility {
   // https://stackoverflow.com/a/75714502/1160200
   // https://qiita.com/irgaly/items/b942bd985a4647e372ea
   fun Context.shareImage(title: String, image: ImageBitmap, filename: String) {
-    val file = try {
-      val outputFile = File(cacheDir, "$filename.png")
-      val outPutStream = FileOutputStream(outputFile)
-      image.asAndroidBitmap().compress(Bitmap.CompressFormat.PNG, 100, outPutStream)
-      outPutStream.flush()
-      outPutStream.close()
-      outputFile
-    } catch (e: Throwable) {
-      throw e
+    val file = File(cacheDir, "$filename.png").also { outputFile ->
+      FileOutputStream(outputFile).use { outputStream ->
+        image.asAndroidBitmap().compress(Bitmap.CompressFormat.PNG, 100, outputStream)
+      }
     }
 
     val uri = file.toUriCompat(this)
@@ -145,8 +140,8 @@ object Utility {
   // https://stackoverflow.com/a/78039163/1160200
   fun Context.restartApp() {
     val packageManager = packageManager
-    val intent = packageManager.getLaunchIntentForPackage(packageName)!!
-    val componentName = intent.component!!
+    val intent = packageManager.getLaunchIntentForPackage(packageName) ?: return
+    val componentName = intent.component ?: return
     val restartIntent = Intent.makeRestartActivityTask(componentName)
     startActivity(restartIntent)
     Runtime.getRuntime().exit(0)