Spec status "Experimental" renamed to "Development": Adjust shortcodes and language statuses

[chalin]

• Followup to Update opentelemetry-specification version to v1.34.0 #4655

Tasks

• Fix API & SDK signal status shortcode - API & SDK signal status: update terminology and links #4657
• Fix and normalize statuses in https://github.com/open-telemetry/opentelemetry.io/blob/main/data/instrumentation.yaml - instrumentation.yaml: use new status name, development #4673
• [infra] Create & use a single signal-status shortcode #4674
• Update use of "Experimental" across all doc pages

Related

• Versioning and stability > Signal lifecycle: image still uses "experimental" status, and some statuses missing opentelemetry-specification#4076