Revise GAL laws and funding

This bill updates Montana laws governing guardian ad litem and court-appointed special advocate roles, clarifying how funds for these positions are allocated. It establishes that money in the court-appointed special advocate account can only be used to fund special advocates, not attorneys serving as paid special advocates. The legislation also refines definitions of terms like "child abuse or neglect" and "best interests of the child" to provide clearer guidance for courts and child welfare professionals. These changes affect judges, attorneys, and organizations involved in child protection cases by standardizing how these roles are funded and defined.