Add menu to code editor, put "Format code" and "Convert to variable" buttons in it (#426)

* Move format code button to menu item
by extending CollapsiblePanel to take an optional
menu React element.

Signed-off-by: Frank Noirot <frank@kittycad.io>

* Style tweaks

* Add shortcuts for format and cmd bar to codemirror

* Move convert to variable into code menu

Signed off by Frank Noirot <frank@kittycad.io>

* Add keyboard shortcut to convert to variable

* Remove convert to variable from toolbar

* Refactor: move TextEditor to its own component

* Set a better convertToVar shortcut

* Style and ergonomic polish for convertToVar modal

* Use named constants for shortcuts 😇

* Try yet another keyboard shortcut

* Fix formatting

* remove isShiftDown from app.tsx

---------

Signed-off-by: Frank Noirot <frank@kittycad.io>
Co-authored-by: Kurt Hutten Irev-Dev <k.hutten@protonmail.ch>

src/hooks/useToolbarGuards.ts

@@ -0,0 +1,56 @@
+import { SetVarNameModal } from 'components/SetVarNameModal'
+import { moveValueIntoNewVariable } from 'lang/modifyAst'
+import { isNodeSafeToReplace } from 'lang/queryAst'
+import { useEffect, useState } from 'react'
+import { create } from 'react-modal-promise'
+import { useStore } from 'useStore'
+
+const getModalInfo = create(SetVarNameModal as any)
+
+export function useConvertToVariable() {
+  const { guiMode, selectionRanges, ast, programMemory, updateAst } = useStore(
+    (s) => ({
+      guiMode: s.guiMode,
+      ast: s.ast,
+      updateAst: s.updateAst,
+      selectionRanges: s.selectionRanges,
+      programMemory: s.programMemory,
+    })
+  )
+  const [enable, setEnabled] = useState(false)
+  useEffect(() => {
+    if (!ast) return
+
+    const { isSafe, value } = isNodeSafeToReplace(
+      ast,
+      selectionRanges.codeBasedSelections?.[0]?.range || []
+    )
+    const canReplace = isSafe && value.type !== 'Identifier'
+    const isOnlyOneSelection = selectionRanges.codeBasedSelections.length === 1
+
+    const _enableHorz = canReplace && isOnlyOneSelection
+    setEnabled(_enableHorz)
+  }, [guiMode, selectionRanges])
+
+  const handleClick = async () => {
+    if (!ast) return
+    try {
+      const { variableName } = await getModalInfo({
+        valueName: 'var',
+      } as any)
+
+      const { modifiedAst: _modifiedAst } = moveValueIntoNewVariable(
+        ast,
+        programMemory,
+        selectionRanges.codeBasedSelections[0].range,
+        variableName
+      )
+
+      updateAst(_modifiedAst)
+    } catch (e) {
+      console.log('e', e)
+    }
+  }
+
+  return { enable, handleClick }
+}