Fixes #75137

Fixes https://github.com/microsoft/vscode/issues/104836

Fixes https://github.com/microsoft/vscode/issues/109864

For #109990

For #109988

The new `js/ts.implicitProjectConfig.strictNullChecks` and `js/ts.implicitProjectConfig.strictFunctionTypes` control these settings in implict javascript and typescript files that are not contained in a jsconfig or tsconfig project. They are enabled by default for now so that we can collect feedback on them

#109896 Remove IStorageKeysSyncRegistryService and introduce new service for syncing extensions storage

Fixes https://github.com/microsoft/vscode/issues/109617

Fixes #109854

* Add splitLines helper  function

I noticed there are a lot of places in our codebase what split strings using a hardcoded `/\r\n|\r|\n/` regular expression. This change extracts that to a new `strings.splitLines` helper

* Update snippetSession.ts

Fixes https://github.com/microsoft/vscode/issues/109932

Fixes https://github.com/microsoft/vscode/issues/104385

Part of #109967

#109967