Dev - Fix job creation with full transaction for jobs and job_grades tables

[Mesrine67]

This patch improves the job creation process by using a complete SQL transaction to ensure that insertions into both the jobs and job_grades tables are atomic. The use of INSERT IGNORE INTO jobs has been corrected to avoid inconsistencies in retrieving the job ID, and all insertion steps are now part of a transaction to ensure that the job and its grades are created reliably.

lib.callback.register('advanced_management:staff:creator', function(source, type, data)
    if type == 'job' then
        local name = data.name
        local label = data.label
        local grades = data.grades
        local success = ESX.CreateJob(name, label, grades)
        -- Wait(500)
        if not success then
            return false
        end
        local jobs = ESX.GetJobs()
        if jobs[name] then
            lib.notify(source, {title = 'Success', description = 'The job was successfully created.', type = 'success'})
            return true
        else
            lib.notify(source, {title = 'Error', description = 'Job creation failed.', type = 'error'})
            return false
        end
    end
    return false
end)

[Gellipapa]

Hi! Thanks for cleanup, and refactor this code block.