Fix bottom modal sheet to draw behind nav bar (#30)

Author: calren

ai-catalog/samples/genai-image-description/src/main/java/com/android/ai/samples/genai_image_description/GenAIImageDescriptionScreen.kt

@@ -144,7 +144,7 @@ fun GenAIImageDescriptionScreen(viewModel: GenAIImageDescriptionViewModel = hilt
                 onDismissRequest = {
                     showBottomSheet = false
                     viewModel.clearGeneratedText()
-                }, sheetState = sheetState, modifier = Modifier.padding(innerPadding)
+                }, sheetState = sheetState
             ) {
                 Text(
                     text = imageDescriptionResult.value,

ai-catalog/samples/genai-summarization/src/main/java/com/android/ai/samples/genai_summarization/GenAISummarizationScreen.kt

@@ -126,7 +126,7 @@ fun GenAISummarizationScreen(viewModel: GenAISummarizationViewModel = hiltViewMo
                 onDismissRequest = {
                     showBottomSheet = false
                     viewModel.clearGeneratedSummary()
-                }, sheetState = sheetState, modifier = Modifier.padding(innerPadding)
+                }, sheetState = sheetState
             ) {
                 Text(
                     text = summarizationResult.value,

ai-catalog/samples/genai-writing-assistance/src/main/java/com/android/ai/samples/genai_writing_assistance/GenAIWritingAssistanceScreen.kt

@@ -153,8 +153,7 @@ fun GenAIWritingAssistanceScreen(viewModel: GenAIWritingAssistanceViewModel = hi
                     showBottomSheet = false
                     viewModel.clearGeneratedText()
                 },
-                sheetState = sheetState,
-                modifier = Modifier.padding(innerPadding)
+                sheetState = sheetState
             ) {
                 Text(
                     text = resultGenerated.value,