LEAR / Edit UI: conversion correction doesn't match schema

This was originally reported in #14159, where it was decided to formally allow corrections to (local) conversion filings. However, the underlying schema error was not resolved:


To begin with, the correction schema doesn't allow "conversion" as a valid Corrected Filing Type ([link to correction schema](https://github.com/bcgov/business-schemas/blob/main/src/registry_schemas/schemas/correction.json)).

Also, "alteration" and "transition" should be added as a valid corrected filing types.

Start with business-schemas/src/registry_schemas/schemas/correction.json, linked in the issue, and inspect the allowed Corrected Filing Type values. Done means the schema accepts conversion, alteration, and transition so the LEAR edit UI's conversion correction matches it.

Written by the indexing model from the issue text.