Horz/Vert distance constraint with modal workflow (#43)

* button style tweak

* Remove duplication constraint ast transforms

* giveSketchFnCallTag to return if line already had a tag

* remove duplication

* update tag name to referenceSegName

* Update transform shape to return key details about the transform

* add modal to hor vert distance workflow

* fix browser env stuff from breaking tests

* fmt

src/App.tsx

@@ -23,6 +23,7 @@ import { PanelHeader } from './components/PanelHeader'
 import { MemoryPanel } from './components/MemoryPanel'
 import { useHotKeyListener } from './hooks/useHotKeyListener'
 import { Stream } from './components/Stream'
+import ModalContainer from 'react-modal-promise'
 
 const OrrthographicCamera = OrthographicCamera as any
 
@@ -140,6 +141,7 @@ function App() {
   }, [code])
   return (
     <div className="h-screen">
+      <ModalContainer />
       <Allotment snap={true}>
         <Allotment vertical defaultSizes={[4, 1, 1]} minSize={20}>
           <div className="h-full flex flex-col items-start">