Migrate mesh policies overviews + examples

## Definition of done

Talk to Justin and figure out what to migrate from the overviews and examples

- [x] /mesh/policies/external-services/
- [x] /mesh/policies/external-services/examples/accessible-from-specific-zone-through-zoneegress/
- [x] /mesh/policies/external-services/examples/zone-egress/
- [x] /mesh/policies/meshaccesslog/
- [x] /mesh/policies/meshaccesslog/examples/log-incoming-traffic/
- [x] /mesh/policies/meshaccesslog/examples/log-outgoing-traffic/
- [x] /mesh/policies/meshaccesslog/examples/logging-to-multiple-backends/
- [x] /mesh/policies/meshcircuitbreaker/
- [x] /mesh/policies/meshcircuitbreaker/examples/basic-circuit-breaker/
- [x] /mesh/policies/meshcircuitbreaker/examples/inbound-traffic-backend-service/
- [x] /mesh/policies/meshfaultinjection/
- [x] /mesh/policies/meshfaultinjection/examples/list-faults-applied-from-frontend/
- [x] /mesh/policies/meshfaultinjection/examples/return-requests-delayed/
- [x] /mesh/policies/meshfaultinjection/examples/return-requests-from-frontend/
- [x] /mesh/policies/meshglobalratelimit/
- [x] /mesh/policies/meshglobalratelimit/examples/global/
- [x] /mesh/policies/meshhealthcheck/
- [x] /mesh/policies/meshhealthcheck/examples/grpcs-health-check-from-cart/
- [x] /mesh/policies/meshhealthcheck/examples/health-check-backend/
- [x] /mesh/policies/meshhealthcheck/examples/protocol-fallback/
- [x] /mesh/policies/meshhttproute/
- [x] /mesh/policies/meshhttproute/examples/traffic-mirror/
- [x] /mesh/policies/meshhttproute/examples/traffic-modification/
- [x] /mesh/policies/meshhttproute/examples/traffic-split/
- [x] /mesh/policies/meshidentity/
- [x] /mesh/policies/meshidentity/examples/bundled-minimal/
- [x] /mesh/policies/meshidentity/examples/bundled-with-user-ca/
- [x] /mesh/policies/meshidentity/examples/spire-provider/
- [x] /mesh/policies/meshloadbalancingstrategy/
- [x] /mesh/policies/meshloadbalancingstrategy/examples/disable-cross-zone-traffic/
- [x] /mesh/policies/meshloadbalancingstrategy/examples/disable-locality-aware/
- [x] /mesh/policies/meshloadbalancingstrategy/examples/load-balancing-http-traffic/
- [x] /mesh/policies/meshloadbalancingstrategy/examples/prioritize-traffic-to-data-planes/
- [x] /mesh/policies/meshloadbalancingstrategy/examples/route-equally/
- [x] /mesh/policies/meshmetric/
- [x] /mesh/policies/meshmetric/examples/default/
- [x] /mesh/policies/meshopa/
- [x] /mesh/policies/meshopa/examples/support-for-external-api/
- [x] /mesh/policies/meshpassthrough/
- [x] /mesh/policies/meshpassthrough/examples/disable-passthrough/
- [x] /mesh/policies/meshpassthrough/examples/enable-passthrough/
- [x] /mesh/policies/meshpassthrough/examples/passthrough-specific-endpoints/
- [x] /mesh/policies/meshproxypatch/
- [x] /mesh/policies/meshproxypatch/examples/lua-filter/
- [x] /mesh/policies/meshproxypatch/examples/time-out-adjustment/
- [x] /mesh/policies/meshratelimit/
- [x] /mesh/policies/meshratelimit/examples/configure-on-services/
- [x] /mesh/policies/meshratelimit/examples/tcp-rate-limit/
- [x] /mesh/policies/meshretry/
- [x] /mesh/policies/meshretry/examples/deadlineexceeded/
- [x] /mesh/policies/meshretry/examples/http-frontend-to-backend/
- [x] /mesh/policies/meshretry/examples/tcp-frontend-to-backend/
- [x] /mesh/policies/meshtcproute/
- [x] /mesh/policies/meshtcproute/examples/traffic-redirection/
- [x] /mesh/policies/meshtcproute/examples/traffic-split/
- [x] /mesh/policies/meshtimeout/
- [x] /mesh/policies/meshtimeout/examples/backend-inbound/
- [x] /mesh/policies/meshtimeout/examples/default-all-gateways/
- [x] /mesh/policies/meshtimeout/examples/http-config/
- [x] /mesh/policies/meshtimeout/examples/target-mesh-httproute/
- [x] /mesh/policies/meshtimeout/examples/tcp-config/
- [x] /mesh/policies/meshtimeout/examples/tcp-port/
- [x] /mesh/policies/meshtimeout/examples/timeout-all-services/
- [x] /mesh/policies/meshtls/
- [x] /mesh/policies/meshtls/examples/set-specific-tls-version/
- [x] /mesh/policies/meshtls/examples/strict-mode/
- [x] /mesh/policies/meshtrace/
- [x] /mesh/policies/meshtrace/examples/datadog/
- [x] /mesh/policies/meshtrace/examples/opentelemetry/
- [x] /mesh/policies/meshtrace/examples/target-east/
- [x] /mesh/policies/meshtrace/examples/target-west/
- [x] /mesh/policies/meshtrace/examples/zipkin/
- [x] /mesh/policies/meshtrafficpermission_experimental/
- [x] /mesh/policies/meshtrafficpermission_experimental/examples/allow-observability-namespace/
- [x] /mesh/policies/meshtrafficpermission_experimental/examples/deny-malicious-namespace/
- [x] /mesh/policies/meshtrafficpermission_experimental/examples/deny-observability-on-backend-admin-api/
- [x] /mesh/policies/meshtrafficpermission/
- [x] /mesh/policies/meshtrafficpermission/examples/service-allow-requests/
- [x] /mesh/policies/meshtrust/
- [x] /mesh/policies/meshtrust/examples/allow-encrypted-traffic/
- [x] /mesh/policies/mutual-tls/

## Information

## Due date (optional)

## Size