fix unused vars and imports (#5852)

* update eslintrc, and fix most of the errors

* more

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* fix last one

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* fixes

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* A snapshot a day keeps the bugs away! 📷🐛

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>
Co-authored-by: Jess Frazelle <github@jessfraz.com>
Co-authored-by: Jess Frazelle <jessfraz@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/lang/modifyAst.ts

@@ -19,7 +19,6 @@ import {
   BinaryExpression,
   PathToNode,
   SourceRange,
-  sketchFromKclValue,
   isPathToNodeNumber,
   parse,
   formatNumber,
@@ -75,7 +74,6 @@ import {
 import { BodyItem } from '@rust/kcl-lib/bindings/BodyItem'
 import { findKwArg } from './util'
 import { deleteEdgeTreatment } from './modifyAst/addEdgeTreatment'
-import { codeManager } from 'lib/singletons'
 
 export function startSketchOnDefault(
   node: Node<Program>,