🚀 Update all icons to new standard

ℹ️ This commit updates the sizes of all icons to match the new standard, ensuring consistency throughout the project. The new sizes were determined after careful consideration and testing to improve the overall user experience. All icons have also gotten a SVG counterpart if possible.

svg/manjaro-linux.svg

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="256" viewBox="0 0 256 256" width="256" xmlns="http://www.w3.org/2000/svg">
+ <g fill="#35bf5c" transform="scale(4)">
+  <path d="m0 0v64h18v-46h23v-18z"/>
+  <path d="m23 23v41h18v-41z"/>
+  <path d="m46 0v64h18v-64z"/>
+ </g>
+</svg>