- Add new Details component to display submission details
- Modify ProblemLayout and ProblemPage to support Details panel
- Implement Details page with submission code view and metadata
- Add navigation back to Submissions panel
- Refactored `ProblemLayout` to pass panel components (Description, Solutions, etc.) as props.
- Updated `ProblemPage` to dynamically render dock panels with content from props, instead of static components.
- Removed `DefaultDockviewOptions` and integrated custom panel configuration directly in `ProblemPage`.
- Enhanced `DockView` to support dynamic panel content rendering based on passed props.
- Added `submissions` field to `ProblemState` and `ProblemStore` type
- Updated `createProblemStore` function to handle `submissions`
- Modified `ProblemStoreProvider` to pass `submissions` as a prop
- Updated `ProblemLayout` to fetch `submissions` from the database and pass to the provider