Discord Bigger Inbox by ibillingsley

/* ==UserStyle==
@name           Discord Bigger Inbox
@namespace      github.com/ibillingsley
@version        1.2.0
@description    Maximize inbox popup on Discord
@author         Isaiah Billingsley
@homepageURL    https://github.com/ibillingsley/userstyles
@license        0BSD
==/UserStyle== */

@-moz-document domain("discord.com") {
  /* Resize and position popup */
  div[class*="recentMentionsPopout"] {
    position: fixed;
    top: 48px;
    right: 0;
    bottom: 0;
    left: 312px;
    width: auto !important;
    height: auto !important;
    max-width: none !important;
    max-height: none !important;
    border-radius: 0;
  }
  /* Single-row toolbar */
  div[class*="recentMentionsPopout"] > div:first-child {
    display: flex;
    align-items: center;
    height: 44px;
    min-height: 44px;
  }
  div[class*="recentMentionsPopout"] > div:first-child > div {
    display: contents;
  }
  div[class*="recentMentionsPopout"] > div:first-child > div:last-child > div:first-child {
    margin-left: 16px;
    padding-left: 16px;
    flex-grow: 999999;
    border-left: 1px solid var(--background-modifier-accent);
  }
  div[class*="recentMentionsPopout"] > div:first-child > div > div:last-child {
    min-width: 32px;
    margin-left: 12px;
    order: 1;
  }
}