feat: add 'Extract to fragment' refactor

.changeset/extract-fragment-refactor.md

@@ -0,0 +1,5 @@
+---
+'@0no-co/graphqlsp': minor
+---
+
+Add an "Extract to fragment" refactor for `graphql()` call-expression documents. When you select one or more complete fields inside a document's selection set, the editor now offers an "Extract to fragment" action under the "GraphQL" refactor group, which creates a new `graphql()` fragment document (named after the fields' parent type) above the current statement, replaces the selected fields with a fragment spread, and adds the new fragment variable to the call's fragment array.

README.md

@@ -10,6 +10,7 @@ auto-complete.
 - Diagnostics for adding fields that don't exist, are deprecated, missmatched argument types, ...
 - Auto-complete inside your editor for fields
 - Will warn you when you are importing from a file that is exporting fragments that you're not using
+- An "Extract to fragment" refactor that moves selected fields into a new co-located fragment (in `graphql()` call-expression mode)
 
 > Note that this plugin does not do syntax highlighting, for that you still need something like
 > [the VSCode/... plugin](https://marketplace.visualstudio.com/items?itemName=GraphQL.vscode-graphql-syntax)

packages/graphqlsp/README.md

@@ -10,6 +10,7 @@ auto-complete.
 - Diagnostics for adding fields that don't exist, are deprecated, missmatched argument types, ...
 - Auto-complete inside your editor for fields
 - Will warn you when you are importing from a file that is exporting fragments that you're not using
+- An "Extract to fragment" refactor that moves selected fields into a new co-located fragment (in `graphql()` call-expression mode)
 
 > Note that this plugin does not do syntax highlighting, for that you still need something like
 > [the VSCode/... plugin](https://marketplace.visualstudio.com/items?itemName=GraphQL.vscode-graphql-syntax)