feat: Implement QuizScreen and basic navigation structure

This commit introduces the `QuizScreen` composable, its associated `QuizScreenViewModel`, and sets up the basic navigation graph for the application.

Key changes:

- **UI Layer (`ui:quiz` module):**
    - Added `QuizScreen.kt` with a basic composable structure.
    - Implemented `QuizScreenViewModel.kt` which fetches quiz data using `GetQuizUseCase` and exposes it via `QuizUiState`.
    - Created `QuizUiState` data class to hold the quiz data for the UI.
    - Added `navigation/QuizNavigation.kt` to define the `QuizRoute` and `quizScreen` navigation extension.
    - Updated `ui/quiz/build.gradle.kts` to include dependencies for Hilt navigation and Timber.
- **App Module (`app` module):**
    - Created `KahootQuizApp.kt` which sets up the main `Scaffold` and includes the navigation graph.
    - Added `KahootQuizNavGraph.kt` to define the `NavHost` and integrate the `quizScreen`.
    - Modified `MainActivity.kt` to call the new `KahootQuizApp` composable, removing the previous direct use case call and UI.
- **Data Layer (`model:data` module):**
    - Updated `QuizMapper.kt` to convert `time` from `Long?` to `Duration?` (using `milliseconds`) when mapping `QuestionDto` to the domain `Question` model.

ui/quiz/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     alias(libs.plugins.kahootquiz.android.library.compose)
     alias(libs.plugins.kahootquiz.android.library.hilt)
+    alias(libs.plugins.kotlin.serialization)
 }
 
 android {
@@ -9,4 +10,6 @@ android {
 
 dependencies {
     implementation(projects.domain)
+    implementation(libs.androidx.hilt.navigation.compose)
+    implementation(libs.timber)
 }

ui/quiz/src/main/kotlin/dev/adriankuta/kahootquiz/ui/quiz/QuizScreen.kt

@@ -0,0 +1,29 @@
+package dev.adriankuta.kahootquiz.ui.quiz
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@Composable
+fun QuizScreen(
+    modifier: Modifier = Modifier,
+    viewModel: QuizScreenViewModel = hiltViewModel()
+) {
+
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+
+    QuizScreen(
+        uiState = uiState,
+        modifier = modifier
+    )
+}
+
+@Composable
+private fun QuizScreen(
+    uiState: QuizUiState,
+    modifier: Modifier = Modifier,
+) {
+
+}

ui/quiz/src/main/kotlin/dev/adriankuta/kahootquiz/ui/quiz/QuizScreenViewModel.kt

@@ -0,0 +1,31 @@
+package dev.adriankuta.kahootquiz.ui.quiz
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import dev.adriankuta.kahootquiz.domain.models.Quiz
+import dev.adriankuta.kahootquiz.domain.usecases.GetQuizUseCase
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class QuizScreenViewModel @Inject constructor(
+    private val getQuizUseCase: GetQuizUseCase
+) : ViewModel() {
+    private val _uiState = MutableStateFlow(QuizUiState())
+    val uiState: StateFlow<QuizUiState> = _uiState.asStateFlow()
+
+    init {
+        viewModelScope.launch {
+            _uiState.value = QuizUiState(getQuizUseCase())
+        }
+    }
+
+}
+
+data class QuizUiState(
+    val quiz: Quiz? = null
+)

ui/quiz/src/main/kotlin/dev/adriankuta/kahootquiz/ui/quiz/navigation/QuizNavigation.kt

@@ -0,0 +1,14 @@
+package dev.adriankuta.kahootquiz.ui.quiz.navigation
+
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.compose.composable
+import kotlinx.serialization.Serializable
+
+@Serializable
+data object QuizRoute
+
+fun NavGraphBuilder.quizScreen() {
+    composable<QuizRoute> {
+
+    }
+}