Add support for rotation gates in `to_ppr` pass

Currently, The to_ppr pass supports PauliRot gate. but not regular rotation gates like RX. Since the latter can be expressed as a PauliRot gate, we can add support for them as well.

Right now, a circuit like below would fail:

qml.capture.enable()
dev = qml.device("null.qubit", wires=1)
pipeline = [("pipe", ["quantum-compilation-stage"])]
@qml.qjit(pipelines=pipeline)
@qml.transforms.to_ppr
@qml.qnode(dev)
def circuit():
    qml.RX(0.1, wires=0)
    return qml.expval(qml.PauliZ(0))

print(circuit.mlir_opt)

with the error message:

catalyst.utils.exceptions.CompileError: catalyst failed with error code 1: Compilation failed:
circuit:24:12: error: Unsupported gate. Supported gates: H, S, T, X, Y, Z, S†, T†, I, and CNOT
      %5 = "quantum.custom"(%4, %3) {gate_name = "RX", operandSegmentSizes = array<i32: 1, 1, 0, 0>, resultSegmentSizes = array<i32: 1, 0>} : (f64, !quantum.bit) -> !quantum.bit
           ^

Start by reproducing the provided qml.RX example with qml.transforms.to_ppr and the shown compilation pipeline. Then inspect the to_ppr pass and its existing PauliRot handling; done means regular rotation gates such as RX compile without the unsupported-gate error.