* Refactor CSS layout and react logic for layout
Fixes https://github.com/chanzuckerberg/cellxgene/issues/1022
* Menubar should wrap inside middle pane instead of overlapping left
sidebar when window is scrunched
* cellxgene should have a minimum width of 1240px
1. Replace absolute positioning and dimension calculation with css grid
2. Use flexbox for wrapping menubar buttons
* Middle pane (graph) can calculate its own size
* Removing components calculating their size/position relative to
eachother increases modularity, decreases use of global variables
* Improved some scrollbar behavior
* Removed responsive reducer, propagating window size to components
triggers unnecessary events and encourages breaking modularity; doing
this made some components state agnostic
Reference: https://css-tricks.com/snippets/css/complete-guide-grid/
* Reposition the continuous legend
* Small fixes
* Respond to feedback from @colinmegill
* Respond to feedback from @colinmegill
Add more documentation on the renderGraph method.
* Create right sidebar files, move histos over
* restructure continuous legend + all padding
* right sidebar file
* proper graph positioning and resize
* new lasso values since right sidebar
* fix autosave position
* menubar 1
* zoom switching
* centering, pixel perfect canvas
* remove dead args and code
* clipping
* remove log
* if
* connect props
* lint
* undo
* logo left, componetize
* graph back to full height
* shadow to top
* do not prematurely call event handlers during render
* change test to deal with async histogram creation
* left section padding
* lint
* adjust graph to account for top bar,
* lasso tests
* refine histogram tests
* remove testing (onlys)
Severiano Badajoz