chore: add changeset for v3.46.1 (#11135)

Author: mrubens

.changeset/v3.46.1.md

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+---
+"roo-cline": patch
+---
+
+- Fix: Sanitize tool_use_id in tool_result blocks to match API history, preventing message format errors (PR #11131 by @daniel-lxs)
+- Add: Mode dropdown to change skill mode dynamically, allowing more flexible skill configuration (PR #11102 by @SannidhyaSah)
+- Add: Import settings option in the initial welcome screen for easier onboarding (#10992 by @emeraldcheshire, PR #10994 by @roomote)
+- Chore: Treat extension .env as optional to simplify development setup (PR #11116 by @hannesrudolph)