Implement TablePlus-like confirmation dialog for delete/truncate table
operations with options for:
- Ignore foreign key checks
- Cascade (delete dependent rows)

Database-specific SQL generation:
- MySQL/MariaDB: SET FOREIGN_KEY_CHECKS=0/1
- PostgreSQL: CASCADE keyword, session_replication_role
- SQLite: PRAGMA foreign_keys

- Wrap multiple operations in BEGIN/COMMIT transaction for atomicity
- Sort tables alphabetically for consistent execution order
- Use SET CONSTRAINTS ALL DEFERRED for PostgreSQL (no superuser required)
- PostgreSQL constraints auto-check at COMMIT

- Rename TableOperationType.delete to .drop for clarity
- Reset dialog state (ignoreForeignKeys, cascade) on open
- Restore pending operations on failure for retry capability
- Include SQLite in transaction wrapping
- Rename 'opts' variable to 'tableOptions' for readability
- Add note when multiple tables selected (same options apply to all)
- Use SET CONSTRAINTS ALL DEFERRED for PostgreSQL (no superuser required)

- Fix PostgreSQL FK handling: return empty array for FK statements
  (PostgreSQL doesn't have a simple way to disable FK checks globally,
  rely on CASCADE option instead)
- Add FK re-enable on error in catch block for MySQL/SQLite
- Add sqlite_sequence reset for true TRUNCATE semantics (reset auto-increment)
- Add docstrings to helper functions for better code documentation
- Fix nested transaction issue when both cell changes and table ops exist
  (wrap in single transaction only when multiple operation types)

- Fix SQL injection: escape embedded quotes in quoteIdentifier by
  doubling them (SQL standard escaping)
- Move FK disable/enable statements outside transaction boundary to
  ensure they take effect even on rollback
- Rename dropTableStatement parameter from tableName to quotedName
  for consistency with truncateStatements
- Disable "Ignore foreign key checks" option for PostgreSQL with
  explanation text (use CASCADE instead)
- Add onChange handlers to reset cascade/ignoreForeignKeys when their
  toggles become disabled, preventing silent override of user selection
- Simplify confirmAndDismiss since values are now reset when disabled

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>