Migrate AttachmentViewHolderFactory to compose

datacapture/src/main/java/com/google/android/fhir/datacapture/extensions/MoreQuestionnaireItemComponents.kt

@@ -579,7 +579,7 @@ internal val QuestionnaireItemComponent.maxSizeInMiBs: BigDecimal?
   get() = maxSizeInBytes?.div(BYTES_PER_MIB)
 
 /** The default maximum size of an attachment is 1 Mebibytes. */
-private val DEFAULT_SIZE = BigDecimal(1048576)
+internal val DEFAULT_SIZE = BigDecimal(1048576)
 
 /** Returns true if given size is above maximum size allowed. */
 internal fun QuestionnaireItemComponent.isGivenSizeOverLimit(

datacapture/src/main/java/com/google/android/fhir/datacapture/views/compose/ErrorText.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.fhir.datacapture.views.compose
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.dimensionResource
+import com.google.android.fhir.datacapture.R
+
+@Composable
+internal fun ErrorText(validationMessage: String) {
+  Text(
+    text = validationMessage,
+    style = MaterialTheme.typography.bodySmall,
+    color = MaterialTheme.colorScheme.error,
+    modifier =
+      Modifier.padding(start = dimensionResource(R.dimen.error_text_margin_horizontal))
+        .testTag(ERROR_TEXT_TAG),
+  )
+}
+
+const val ERROR_TEXT_TAG = "error_text"