Pre-suppress unsafe string key access errors in www 1/n #2134

Job	Run time
v12.16: babel-plugin-fbt-runtime:test	43s
v12.16: babel-plugin-fbt:test	1m 13s
v12.16: babel-plugin-standalone:test	1m 25s
v12.16: demo-app:test	1m 8s
v12.16: fb-tiger-hash:test	41s
v12.16: flow:check	46s
v12.16: gulp-rewrite-flowtyped-modules:test	42s
v12.16: gulp-strip-docblock-pragmas:test	41s
v12.16: top-level:test	44s
v16.0: babel-plugin-fbt-runtime:test	52s
v16.0: babel-plugin-fbt:test	1m 22s
v16.0: babel-plugin-standalone:test	1m 6s
v16.0: demo-app:test	56s
v16.0: fb-tiger-hash:test	53s
v16.0: flow:check	44s
v16.0: gulp-rewrite-flowtyped-modules:test	55s
v16.0: gulp-strip-docblock-pragmas:test	40s
v16.0: top-level:test	3m 6s
	18m 37s

Provide feedback