feat: add modal component for sighting details with content display

- Implemented ModalComponent for reusable modal functionality.
- Created SightingItemModal to manage modal state and display sighting details.
- Developed SightingModalContent to render sighting information including video feed and metadata.

src/utils/types.ts

@@ -54,8 +54,14 @@ export type NpedJSON = {
 
 export type CameraSettings = {
   mode: number;
+  imageSize: { width: number; height: number };
 };
-export type CameraSettingsAction = {
-  type: "SET_MODE";
-  payload: number;
-};
+export type CameraSettingsAction =
+  | {
+      type: "SET_MODE";
+      payload: number;
+    }
+  | {
+      type: "SET_IMAGE_SIZE";
+      payload: { width: number; height: number };
+    };