v0.3.0-alpha.7

Changelog

• f5e602a docs(kube): record the namespace-scoped helm cache and the stalled-cache signal
• 910ab68 feat(tui): warn in yellow when the helm repo cache is missing or stale, and name the fix
• 6ec781a fix(kube): load helm releases for the namespace you're browsing, not the whole cluster
• 967c614 fix(tui): say why a list is empty instead of loading forever
• 964ec80 fix(tui): stop the helm releases list pulling every secret in the cluster