feat(icons): update rainbow.svg to support wider design

Extended the width of rainbow.svg from 94 to 135 to better accommodate updated design requirements. Added licensing information comment for clarity and compliance. Adjusted positions and dimensions of color blocks to align with the new width. No functional changes introduced.

assets/dist/icons/rainbow.svg

@@ -1,13 +1,16 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="94" height="20" role="img" aria-label="LGBTIQ+">
+<svg xmlns="http://www.w3.org/2000/svg" width="135" height="20" role="img" aria-label="LGBTIQ+">
+  <!-- This file was created as part of the Private.coffee project
+     It is licensed under the MIT license
+     For more information, please visit https://private.coffee -->
   <title>LGBTIQ+</title>
-    <rect rx="3" width="94" height="20" fill="#555"/>
-    <rect x="37" width="57" height="20" fill="#e05d44"/>
-    <rect x="46.5" width="47.5" height="20" fill="#fecc00"/>
-    <rect x="56" width="37" height="20" fill="#61c354"/>
-    <rect x="65.5" width="27" height="20" fill="#007ec6"/>
-    <rect x="75" width="17" height="20" fill="#744ca1"/>
-    <rect x="84.5" width="9.5" height="20" rx="3" ry="3" fill="#8b00ff"/>
+  <rect rx="3" width="135" height="20" fill="#555"></rect>
+  <rect x="53" width="82" height="20" fill="#e05d44"></rect>
+  <rect x="66.5" width="68.5" height="20" fill="#fecc00"></rect>
+  <rect x="80" width="55" height="20" fill="#61c354"></rect>
+  <rect x="93.5" width="41.5" height="20" fill="#007ec6"></rect>
+  <rect x="107" width="28" height="20" fill="#744ca1"></rect>
+  <rect x="120.5" width="14.5" height="20" rx="3" ry="3" fill="#8b00ff"></rect>
   <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="8">
-      <text x="18.5" y="15" fill="#fff">LGBTIQ+</text>
+    <text x="27" y="15" fill="#fff">LGBTIQ+</text>
   </g>
 </svg>