Fix vertical label rotation on web

[ps-patryk]

Fixes #366

[KeitelDOG]

Hi, I'm using this package and I've seen this rotation problem in label, where the center of rotation is from Chat container instead of being inside of label container itself, so that it seems more like a Moon Revolution instead of auto-rotation that we need.

Can you tell more about your pull request codes, maybe they will merge it in new version.

[iexitdev]

Maintainer triage note: the bug from #366 is real and this is a small targeted patch, but I would not merge this exact diff without a refresh.

After wrapping the label in G, the mapped root element no longer has the React key; the key remains on the child Text, which will produce key warnings. The web-only G positioning also needs verification against the current react-native-svg web behavior before merging.

Recommendation: worth salvaging/reworking, not a direct merge. If no one can verify and update it against current master, I would close it and track the issue with a fresh focused fix.