Update cheatsheets

tldr/fvm

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fvm
+
+> Flutter version manager.
+> More information: <https://fvm.app/documentation/guides/basic-commands>.
+
+- Install a version of the Flutter SDK. Use without `version` for project settings:
+
+`fvm install {{version}}`
+
+- Set a specific version of Flutter SDK in a project:
+
+`fvm use {{version}} {{options}}`
+
+- Set a global version of the Flutter SDK:
+
+`fvm global {{version}}`
+
+- Delete the FVM cache:
+
+`fvm destroy`
+
+- Remove a specific version of the Flutter SDK:
+
+`fvm remove {{version}}`
+
+- List all installed versions of the Flutter SDK:
+
+`fvm list`
+
+- List all releases of the Flutter SDK:
+
+`fvm releases`