ClaimRev Connect V2.1.7

Fix so enabling the module no longer blanks the Patient Portal / API panel on the patient dashboard (or fatals the claims/ERA/payment pages) on OpenEMR 8.0.x. Completes the 2.1.4 KernelCompat migration — eleven getKernel() call sites in templates/eligibility.php and the public/*.php entry points were still calling the method that doesn't exist on 8.0.x — and adds a try/catch (\Throwable) fault boundary around the eligibility section so a render fault can never blank adjacent core panels again. Verified on the 8.0.0.3 test container.

Full Changelog: v2.1.6...v2.1.7