Ideas: provide tinyurl support when sharing large snippets

[bobzhang]

rescript-lang/syntax#341 (comment)

see this in the issue, it may make sense to using 3rd party tinyurl service when the snippet is too long

[ryyppy]

@IwanKaramazow could have used markdown syntax to shorten the link ... we didn't implement any tinyurl integration to keep the playground reliable and dependency free as long as possible