Update cheatsheets

tldr/opencode-uninstall

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# opencode uninstall
+
+> Uninstall OpenCode and remove all related files.
+> More information: <https://opencode.ai/docs/cli#uninstall>.
+
+- Uninstall OpenCode:
+
+`opencode uninstall`
+
+- Uninstall and keep configuration files:
+
+`opencode uninstall {{[-c|--keep-config]}}`
+
+- Uninstall and keep session data and snapshots:
+
+`opencode uninstall {{[-d|--keep-data]}}`
+
+- Show what would be removed without removing:
+
+`opencode uninstall --dry-run`
+
+- Skip confirmation prompts:
+
+`opencode uninstall {{[-f|--force]}}`
+
+- Display help:
+
+`opencode uninstall {{[-h|--help]}}`