updated navbar design

public/assets/hamburger.svg

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="24" height="24" version="1.1" viewBox="0 0 6.3499998 6.3499998" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+<metadata>
+<rdf:RDF>
+<cc:Work rdf:about="">
+<dc:format>image/svg+xml</dc:format>
+<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+<dc:title/>
+</cc:Work>
+</rdf:RDF>
+</metadata>
+<g transform="translate(0,-290.65)">
+<path transform="matrix(.26458 0 0 .26458 0 290.65)" d="m4 3c-1.108 0-2 0.89201-2 2s0.89201 2 2 2h16c1.108 0 2-0.89201 2-2s-0.89202-2-2-2h-16zm0 6.7773c-1.108 0-2 0.94178-2 2.1113s0.89201 2.1113 2 2.1113h16c1.108 0 2-0.94178 2-2.1113s-0.89201-2.1113-2-2.1113h-16zm0 7c-1.108 0-2 0.94178-2 2.1113s0.89203 2.1113 2 2.1113h16c1.108 0 2-0.94178 2-2.1113s-0.89203-2.1113-2-2.1113h-16z" fill="#333f67"/>
+</g>
+</svg>