refactor: svg icons (#1096)

* refactor svg

* add svgo

* refine

* add tree.svg

* add svg.yml

src/icons/svg/drag.svg

@@ -1 +1 @@
-<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg t="1503994190757" class="icon" style="" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="9007" xmlns:xlink="http://www.w3.org/1999/xlink" width="64" height="64"><defs><style type="text/css"></style></defs><path d="M574.957891 267.016403 511.503696 267.016403l204.64896 0L511.212054 63.654762l-203.361641 203.361641L449.041086 267.016403l0 189.662641L258.687714 456.679044l0 125.916804L449.041086 582.595848l0 190.354396 125.916804 0L574.957891 582.595848l188.874695 0L763.832586 456.679044 574.957891 456.679044 574.957891 267.016403zM511.25401 960.345238l189.620685-187.394994L323.125305 772.950244 511.25401 960.345238zM71.291696 518.891967l187.394994 189.620685L258.68669 330.762239 71.291696 518.891967zM763.832586 330.762239l0 377.74939 188.874695-189.620685L763.832586 330.762239z" p-id="9008"></path></svg>
+<svg width="128" height="128" xmlns="http://www.w3.org/2000/svg"><path d="M73.137 29.08h-9.209 29.7L63.886.093 34.373 29.08h20.49v27.035H27.238v17.948h27.625v27.133h18.274V74.063h27.41V56.115h-27.41V29.08zm-9.245 98.827l27.518-26.711H36.59l27.302 26.71zM.042 64.982l27.196 27.029V38.167L.042 64.982zm100.505-26.815V92.01l27.41-27.029-27.41-26.815z"/></svg>