Cleanup UX: slim logging, DBI keep config, no manifest overwrite

- Slim cleanup: one progress line per section (Bereinige: X [p%] (n/n))
  via delete_path_lists_grouped() in clean and update mode
- DBI: remove folder entries from deletion lists; only .nro deleted,
  folder and config preserved
- Remove redundant manifest.ini creation; use manifest from pack config/

Co-authored-by: Cursor <cursoragent@cursor.com>

source/install.h

@@ -36,6 +36,7 @@ bool install_path_exists(const char *path);
 int install_count_directory_items(const char *path);
 void install_combine_path(char *result, size_t size, const char *base, const char *add);
 int delete_path_list(const char* paths[], const char* description);
+int delete_path_lists_grouped(const char *folder_display_name, ...);
 int folder_delete_single_with_progress(const char *path, const char *display_name);
 int folder_delete_progress_recursive(const char *path, int *deleted, int total, u32 start_x, u32 start_y, const char *display_name, int *last_percent);
 int folder_copy_with_progress_v2(const char *src, const char *dst, const char *display_name);