Text this: Observations of the singly Cabibbo-suppressed decays Ξ c + → p K S 0 $$ {\Xi}_c^{+}\to p{K}_S^0 $$ , Ξ c + → Λ π + $$ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $$ , and Ξ c + → Σ 0 π + $$ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $$ at Belle and Belle II