fix long values in sidebar (#911)

* tweak overflow and add truncation

* remove log

* alter char limit to evenly space around occupancy

* use global hover delay

* create constants for truncation lengths and fix truncation on self color

* create globals for short and long sidebar value length

* fix alignment

* create quick delay global

client/src/globals.js

@@ -68,9 +68,12 @@ export const leftSidebarSectionHeading = {
   letterSpacing: ".05em"
 };
 export const leftSidebarSectionPadding = 10;
+export const categoryLabelDisplayStringLongLength = 35;
+export const categoryLabelDisplayStringShortLength = 15;
 
 /* various timing-related behaviors */
 export const tooltipHoverOpenDelay = 1000; /* ms delay before a tooltip displays */
+export const tooltipHoverOpenDelayQuick = 500;
 
 let _API = {
   // prefix: "http://api.clustering.czi.technology/api/",