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!

src/lang/modifyAst.ts

@@ -223,8 +223,8 @@ export function findUniqueName(
     if (!nameIsInString) return name
 
     // recursive case: name is not unique and ends in digits
-    const newPad = nameEndsInDigits[1].length
-    const newIndex = parseInt(nameEndsInDigits[1]) + 1
+    const newPad = nameEndsInDigits[0].length
+    const newIndex = parseInt(nameEndsInDigits[0]) + 1
     const nameWithoutDigits = name.replace(endingDigitsMatcher, '')
 
     return findUniqueName(searchStr, nameWithoutDigits, newPad, newIndex)