* [feature] grids

* Shows relative grids at different zoom levels

* Update colors

* Restores vec and intersect to monorepo, changes vec.round to vec.toFixed, adds vec.snap

* Snapping in translate and transforms, fix shortcut

* fix bugs in build

* use grid size for nudge too

* update scripts

* Update grid.tsx

* Update grid.tsx

* Fixed!

* Update grid.tsx

* Fix package imports

* Update Editor.tsx

* Improve tsconfigs, imports

* Fix tiny arrow bugs, snap starting points to grid

* Update tsconfig.base.json

* Update shape-styles.ts

* Fix example tsconfig

* Fix translate type error

* Fix types, paths

Co-authored-by: Steve Ruiz <steveruizok@gmail.com>

* remove sponsorwall for main route

* Adds sponsorship link

* Remove all sponsorwall

* Fix sponsorship link appearance on dark mode

* Add heart icon

* Fix text bug

* Fix toolbar, hide resize handles on sticky

* Add eraser

* Update Kbd.tsx

* cleanup

* base zoom delta on event deltaMode

* Fix image in example

* Fix eraser icon

* eraser tool resets to previous tool

* Update EraseTool.spec.ts

* Improves support for locked shapes

* Update _document.tsx

* Update CHANGELOG.md

* Adds multiplayer menu, fix develop route in example

* Tighten up top panel padding

* Update top bar, bump packages

* refactor TLDrawState -> TLDrawApp, mutables, new tests

* Fix scaling bug, delete groups bug

* fix snapping

* add pressure to points

* Remove mutables, rename to tldraw (or Tldraw)

* Clean up types, add darkmode prop

* more renaming

* rename getShapeUtils to getShapeUtil

* Fix file names

* Fix last bugs related to renaming

* Update state to app in tests

* rename types to TD

* remove unused styles / rename styles

* slight update to panel

* Fix rogue radix perf issue

* Update ZoomMenu.tsx

* Consolidate style panel

* Fix text wrapping in text shape, improve action menu

* Fix props

* add indicators for tool lock

* fix calloits

* Add click to erase shapes

* Slightly improve loading screen

* Update PrimaryTools.tsx

* remove force consistent filenames from tsconfig

* Update useTldrawApp.tsx

* fix capitalization

* Update main.yml

* bumps rko, adds events

* rename tlstate to state, fix env for multiplayer test

* Fix multiplayer

* rename data tldrawstate to tldrawsnapshot

* Update multiplayer-editor.tsx

* Fix shhhmp

* Update 2.tldr

* Add API to the README

* Rename shape utils

* renames files

* Add husky

* Delete .babelrc

* Update TLDR.ts

* renames commands

* Update package.json

* more pre-commit work

* Simplify snaps

* Update readmes

* Improves snapping

* filter snappable shapes, give viewport information to sessions

* defer cloning

* basic snapping

* Improves algorithm for snap points, rendering

* Improves snapping, snaplines

* Enables a clone to snap to its parent

* Adds overlay

* Fix overlay, zoom scaling for distance and speed

* Fixes cleanup for new shapes on undo

* Fix streamline

* Refactor Tools

* Update text.tsx

* Passing tests

* Error fixes

* Fix re-selecting tool

* Fix arrow

esbuild isn't currently tree shaking intersections, but that's a file where we could save some room

Not sure if I'll keep this, but together with the improved trimming it actually reduces the size of these arrays.

Was deep comparing an array of actual selected shapes, rather than selected shape ids

Until we have a better solution.