fix: IE is not showing the notes icons SVG icons with the correct size.

_assets/images/caution-icon.svg

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Generator: Adobe Illustrator 19.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-	 viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve">
+	 viewBox="0 0 512 512" width="48px" height="48px" style="enable-background:new 0 0 512 512;" xml:space="preserve">
 <path fill="#f31700" d="M224,128h64v160h-64V128z M224,384h64v-64h-64V384z M480,256c0,123.7-100.3,224-224,224S32,379.7,32,256S132.3,32,256,32
 	S480,132.3,480,256z M448,256c0-106-86-192-192-192S64,150,64,256s86,192,192,192S448,362,448,256z"/>
 </svg>

_assets/images/important-icon.svg

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Generator: Adobe Illustrator 19.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-	 viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve">
+	 viewBox="0 0 512 512" width="48px" height="48px" style="enable-background:new 0 0 512 512;" xml:space="preserve">
 <path fill="#ffc000" d="M288,352h32v32H192v-32h32v-96h-32v-32h96V352z M288,128h-64v64h64V128z M480,256c0,123.7-100.3,224-224,224
 	S32,379.7,32,256S132.3,32,256,32S480,132.3,480,256z M448,256c0-106-86-192-192-192S64,150,64,256s86,192,192,192S448,362,448,256z
 	"/>

_assets/images/tip-icon.svg

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Generator: Adobe Illustrator 19.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-	 viewBox="0 0 512 512" enable-background="new 0 0 512 512" xml:space="preserve">
+	 viewBox="0 0 512 512" width="48px" height="48px" enable-background="new 0 0 512 512" xml:space="preserve">
 <path fill="#37b400" d="M256,32C132.3,32,32,132.3,32,256s100.3,224,224,224s224-100.3,224-224S379.7,32,256,32z M256,448c-106,0-192-86-192-192
 	S150,64,256,64s192,86,192,192S362,448,256,448z M224,294l-83-83l-45,45l128,128l176-176l-45-45L224,294z"/>
 </svg>