feat(router): inject repositories into search bloc

- Added category repository
- Added source repository
- Added country repository

Author: fulleni

lib/router/router.dart

@@ -293,11 +293,14 @@ GoRouter createRouter({
                     )..add(const HeadlinesFeedFetchRequested()),
               ),
               BlocProvider(
-                create:
-                    (context) => HeadlinesSearchBloc(
-                      headlinesRepository:
-                          context.read<HtDataRepository<Headline>>(),
-                    ),
+                create: (context) => HeadlinesSearchBloc(
+                  headlinesRepository:
+                      context.read<HtDataRepository<Headline>>(),
+                  categoryRepository:
+                      context.read<HtDataRepository<Category>>(),
+                  sourceRepository: context.read<HtDataRepository<Source>>(),
+                  countryRepository: context.read<HtDataRepository<Country>>(),
+                ),
               ),
               BlocProvider(
                 create: