Remaining line length issues

### Description of the modifications

Some lines are not correctly resized. Here are a few of them:
- [ ] ``show`` method : https://github.com/ansys/pymapdl/pull/3750/files#r2052495255
- [ ] ``slashlarc`` method: https://github.com/ansys/pymapdl/pull/3750/files#r2052523936
- [ ] ``slashpspec``method: https://github.com/ansys/pymapdl/pull/3750/files/dd042e9a8980da31698c36ea3d3e59ff1cca4a10#r2052528102
- [ ] ``psf`` method: https://github.com/ansys/pymapdl/pull/3750#discussion_r2052550072
- [ ] ``pmgtran`` method: https://github.com/ansys/pymapdl/pull/3892#discussion_r2075163100
- [ ] ``assign`` method: https://github.com/ansys/pymapdl/pull/3895#discussion_r2075276250
- [ ] ``fp`` method: https://github.com/ansys/pymapdl/pull/3983#discussion_r2135540433
- [ ] ``rsys`` method: https://github.com/ansys/pymapdl/pull/3983#discussion_r2135986439
- [ ] ``etable`` method: https://github.com/ansys/pymapdl/pull/3983#discussion_r2136005410
- [ ] ``plas`` method: https://github.com/ansys/pymapdl/pull/4003#discussion_r2142558300
- [ ] ``pras`` method: https://github.com/ansys/pymapdl/pull/4003#discussion_r2142571456
- [ ] ``kcenter`` method: https://github.com/ansys/pymapdl/pull/4262#discussion_r2464697331 (not resized because list in the argument description)
- [ ] ``ocdata`` method: https://github.com/ansys/pymapdl/pull/4280#discussion_r2660711836

### Useful links and references

_No response_

Start with the linked review comments for the show, slashlarc, slashpspec, psf, pmgtran, assign, fp, rsys, etable, plas, pras, kcenter, and ocdata methods to identify each remaining line-length problem. Locate those methods in the converter output and verify that every listed line is resized while preserving the documented content; run the repository's available checks afterward.

Written by the indexing model from the issue text.