fix: minor type definition problems (#130) #6579

Job	Run time
get-lint-packages	4s
get-build-packages	7s
get-test-packages	4s
monorepo-lint	1m 11s
test (isaacscript-cli)	41s
test (eslint-plugin-isaacscript)	42s
lint (isaac-typescript-definitions-repentogon)	55s
lint (isaac-typescript-definitions)	56s
lint (eslint-config-isaacscript)	51s
lint (eslint-plugin-isaacscript)	1m 8s
lint (isaac-lua-polyfill)	50s
lint (isaacscript-common)	1m 19s
lint (docs)	1m 0s
lint (isaacscript-cli)	53s
lint (isaacscript-spell)	43s
build (eslint-plugin-isaacscript)	41s
build (isaac-typescript-definitions)	43s
build (isaacscript-cli)	46s
build (docs)	41s
build (isaac-lua-polyfill)	43s
build (isaacscript-common)	1m 1s
build (isaac-typescript-definitions-repentogon)	42s
Discord Failure Notification	0s
	16m 41s

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