Add ability to create named constant without code (#5840)

* Add support for forcing kcl input create variable

* Command palette padding tweak

* Make traverse function work for ExpressionStatements

* Add utilities for getting earliest safe index in AST

* Fix the insertIndex logic to not be based on the selection anymore

* Add workflow to create a named constant

* Fix bug with nameEndInDigits matcher

* Tweak command config

* Add a three-dot menu to feature tree pane to create parameters

* Add E2E test for create parameter flow

* Remove edit flow oops

* Fix tsc error

* Fix E2E test

* Update named constant position in edit flow test

* Add tags into consideration for safe insert index

Per @Irev-dev's helpful feedback, with unit tests!

e2e/playwright/feature-tree-pane.spec.ts

@@ -231,10 +231,10 @@ test.describe('Feature Tree pane', () => {
       |> circle(center = [0, 0], radius = 5)
       renamedExtrude = extrude(sketch001, length = ${initialInput})`
     const newConstantName = 'distance001'
-    const expectedCode = `sketch001 = startSketchOn('XZ')
+    const expectedCode = `${newConstantName} = 23
+    sketch001 = startSketchOn('XZ')
       |> circle(center = [0, 0], radius = 5)
-      ${newConstantName} = 23
-      renamedExtrude = extrude(sketch001, length = ${newConstantName})`
+            renamedExtrude = extrude(sketch001, length = ${newConstantName})`
 
     await context.folderSetupFn(async (dir) => {
       const testDir = join(dir, 'test-sample')