feat: Implement interactive quiz screen with answer revealed state

This commit enhances the `QuizScreen` to be interactive, allowing users to select choices and view revealed answers. It also introduces HTML parsing for question text and adds new design elements like icons and colors.

Key changes:

- **UI Layer (`ui:quiz` module):**
    - `QuizScreen`:
        - Now takes an `onSelect` callback to handle choice selection.
        - `Choices` composable updated to display choices in a `LazyVerticalGrid` and handles click events.
        - Introduced `ChoiceItem` which branches into `ChoiceItemDefault` (for selectable choices) and `ChoiceItemRevealed` (for displaying correct/incorrect answers).
        - `ChoiceItemDefault` displays choices with background colors and icons based on their index.
        - `ChoiceItemRevealed` displays choices with background colors indicating correctness (green for correct, red for incorrect selected, pink for incorrect unselected) and appropriate icons (tick for correct, cross for wrong).
        - `QuestionContent` now parses HTML in the question text using `HtmlCompat` and a new `toAnnotatedString` extension.
        - Image loading in `QuestionContent` uses `ContentScale.FillWidth` and `heightIn(min = 200.dp)`.
        - Added a new preview `QuizScreenRevealedAnswerPreview` to showcase the revealed answer state.
    - `QuizScreenViewModel`:
        - Now manages `_selectedChoiceIndex` to track the user's answer.
        - `uiState` is now a combination of the fetched quiz and the `_selectedChoiceIndex`, producing `QuizUiState` which includes an `AnswerUiState`.
        - `AnswerUiState` holds the `selectedChoiceIndex`.
        - Implemented `onChoiceSelected(index: Int)` to update the selected choice.
- **Design System (`core:designsystem` module):**
    - Added `TextUtils.kt` with a `Spanned.toAnnotatedString()` extension function to convert HTML formatted text (from `HtmlCompat`) into Jetpack Compose `AnnotatedString`.
    - Added new color definitions: `Pink`, `Red`, `Red2`, `Blue2`, `Yellow3`, `Green`, `Green2`.
    - Added a `contrastiveTo(color: Color)` utility function to determine a contrasting text color (black or white) for a given background color.
    - Added new vector drawables for choice shapes and correctness indicators:
        - `ic_circle.xml`
        - `ic_correct.xml`
        - `ic_diamond.xml`
        - `ic_square.xml`
        - `ic_triangle.xml`
        - `ic_wrong.xml`
    - Added Detekt configuration file (`config/detekt/detekt.yml`) for the design system module.
- **Domain Layer (`domain` module):**
    - `Question.image` is now nullable (`String?`).
    - `Choice.correct` is now non-nullable (`Boolean`).
- **Network Layer (`core:network` module):**
    - `ChoiceDto.correct` is now non-nullable (`Boolean`) to align with the domain model.
- **Project Configuration:**
    - Added `.editorconfig` with Kotlin specific trailing comma settings.
    - Minor reordering of dependencies in `gradle/libs.versions.toml`.

.editorconfig

@@ -0,0 +1,4 @@
+[*.{kt,kts}]
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
+