refactor: migrate addon package to TypeScript #818

Job	Run time
Floating Dependencies	1m 14s
Tests	1m 2s
Type checking - typescript@5.0	56s
ember-try: ember-lts-3.28	1m 10s
Type checking - typescript@5.1	1m 1s
ember-try: ember-lts-4.4	1m 43s
Type checking - typescript@next	49s
ember-try: ember-lts-4.8	1m 12s
ember-try: ember-lts-4.12	1m 20s
ember-try: ember-release	1m 13s
ember-try: ember-beta	1m 23s
ember-try: ember-canary	1m 23s
ember-try: ember-classic	1m 20s
ember-try: embroider-safe	1m 21s
ember-try: embroider-optimized	1m 29s
	18m 36s

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