Insurance — Attorney’s fees — Proposal for settlement — Where medical provider had actual notice of insurer’s proposal for settlement, it was not required that proposal be filed with court unless proposal was accepted or unless necessary to enforce settlement — Error in case number in email accompanying proposal for settlement sent to provider was trivial and did not alter effect of delivery of proposal — Proposal was not defective for failing to state case number and parties’ names in body of proposal where number and names were specified at top of page — Fact that provider did not open email did not make notice of proposal ineffective — Insurer is entitled to award of fees and costs