Remove redundant navigartion icons

static/images/nav/back.svg

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="4.191mm" height="4.191mm" version="1.1" viewBox="0 0 4.191 4.191" xmlns="http://www.w3.org/2000/svg">
-<g transform="translate(-91.032 -156.47)">
-<path d="m95.223 158.3v0.52916h-3.175c0.48507 0.48507 0.97014 0.97014 1.4552 1.4552-0.12524 0.12524-0.25047 0.25047-0.37571 0.37571l-2.0955-2.0955 2.0955-2.0955c0.12524 0.12524 0.25047 0.25047 0.37571 0.37571-0.48507 0.48507-0.97014 0.97014-1.4552 1.4552h3.175z" fill="#f9f9f9" stroke-width=".26458"/>
-</g>
-</svg>

static/images/nav/close.svg

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="3.7042mm" height="3.7042mm" version="1.1" viewBox="0 0 3.7042 3.7042" xmlns="http://www.w3.org/2000/svg">
-<g transform="translate(-20.8 -106.38)">
-<path d="m24.505 106.75-0.37306-0.37306-1.479 1.479-1.479-1.479-0.37306 0.37306 1.479 1.479-1.479 1.479 0.37306 0.37306 1.479-1.479 1.479 1.479 0.37306-0.37306-1.479-1.479z" fill="#f9f9f9" stroke-width=".26458"/>
-</g>
-</svg>

static/images/nav/hamburger.svg

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="4.7625mm" height="3.175mm" version="1.1" viewBox="0 0 4.7625 3.175" xmlns="http://www.w3.org/2000/svg">
-<g transform="translate(-54.25 -207.32)">
-<path d="m54.25 207.32h4.7625v0.52917h-4.7625v-0.52917m0 1.3229h4.7625v0.52916h-4.7625v-0.52916m0 1.3229h4.7625v0.52917h-4.7625z" fill="#f9f9f9" stroke-width=".26458"/>
-</g>
-</svg>

static/images/nav/refresh.svg

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="32" height="32" version="1.1" viewBox="0 96 640 640" xmlns="http://www.w3.org/2000/svg">
-<path d="m320 736q-133 0-226.5-93.5t-93.5-226.5 93.5-226.5 226.5-93.5q85 0 149 34.5t111 94.5v-129h60v254h-254v-60h168q-38-60-97-97t-137-37q-109 0-184.5 75.5t-75.5 184.5 75.5 184.5 184.5 75.5q83 0 152-47.5t96-125.5h62q-29 105-115 169t-195 64z" fill="#fff"/>
-</svg>