Drop western default apps from the CN default set

Basecamp, Discord, HEY, Google Contacts/Maps/Messages/Photos,
WhatsApp, and X lose their shipped launchers, webapp keybindings,
and the whatsapp-slim extension; aether, libreoffice-fresh, and
obs-studio leave the base package set. The HEY mailto handler and
its registration go with them. Preinstall add/remove lists, the
launcher hide list, and chromium flags stay in sync.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

default/chromium/extensions/whatsapp-slim/manifest.json

@@ -1,21 +0,0 @@
-{
-  "manifest_version": 3,
-  "name": "WhatsApp Slim",
-  "version": "1.1",
-  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAszLhFYxjvKqx1VAORt3M6b0H1Kz03cmQ1MrUjJZ8gj3nhRcvufk6PS17yUIjEdKKmuj+1HuFVwOaHJQsACGJXwn2TeKQqZmZx/83yd7ydgabHXTsJbhy5O+Yunv+VA1B2IX/phcXpkH9bPv2PuC/bQ13nmmAvT2b+EMyq8EPQHOoSWhE4M4kIhLDczTmxfJX5X3tTxH66952DYuQWvGpIXLAUXkvIgap0qemW68/LymPaWzcg6g3oE/nZ7C0j7JE5bnqLFxqXNlA9Jt+Ss/1Y33QL3OSD9EEsrpgueS0bbqtkmFQ9/jGlruIL+qj0xe+CAtqbJ5ty9H/sqi01kjfyQIDAQAB",
-  "description": "Make WhatsApp Web follow the system theme and collapse its chat list in narrow windows, this extension is installed by Omarchy",
-  "content_scripts": [
-    {
-      "matches": [
-        "https://web.whatsapp.com/*"
-      ],
-      "css": [
-        "whatsapp.css"
-      ],
-      "js": [
-        "system-theme.js"
-      ],
-      "run_at": "document_start"
-    }
-  ]
-}

default/chromium/extensions/whatsapp-slim/system-theme.js

@@ -1,4 +0,0 @@
-if (localStorage.getItem("system-theme-mode") !== "true") {
-  localStorage.setItem("system-theme-mode", "true");
-  location.reload();
-}

default/chromium/extensions/whatsapp-slim/whatsapp.css

@@ -1,64 +0,0 @@
-/* Collapse WhatsApp Web's chat list to a Signal-style avatar rail when the
- * window is too narrow to show both the full list and the conversation.
- * Leans on WhatsApp's stable structural ids (#side, #main, #pane-side) and
- * data-testid hooks rather than its obfuscated, frequently-churning class
- * names. */
-
-@media (max-width: 1100px) {
-  /* The chat-list column (title header + #side) becomes an avatar rail */
-  div:has(> div#side) {
-    flex: 0 0 90px !important;
-    min-width: 90px !important;
-    max-width: 90px !important;
-  }
-
-  /* Chat-list title bar, search, filter chips, and banner don't fit.
-   * Scoped to the column wrapper: the left icon nav rail confusingly
-   * shares the same chatlist-header testid and must survive. */
-  div:has(> div#side) > header,
-  #side > div:first-child,
-  #side [role="tablist"],
-  #side span[data-testid="chat-butterbar"] {
-    display: none !important;
-  }
-
-  /* The rail doesn't need a visible scrollbar, and horizontal overflow
-   * from the collapsed rows must not wiggle */
-  #pane-side {
-    overflow-x: hidden !important;
-    scrollbar-width: none !important;
-  }
-
-  /* Chat rows: keep the avatar column, collapse the text/preview columns
-   * without display:none so the unread badge can be resurrected */
-  [data-testid="cell-frame-container"] {
-    position: relative !important;
-  }
-
-  [data-testid="cell-frame-container"] > div:not(:first-child) {
-    visibility: hidden !important;
-    width: 0 !important;
-    min-width: 0 !important;
-    overflow: hidden !important;
-  }
-
-  /* Float the unread badge over the avatar's top-right corner */
-  [data-testid="cell-frame-container"] span[aria-label*="unread"] {
-    visibility: visible !important;
-    position: absolute !important;
-    top: 2px !important;
-    left: 50px !important;
-  }
-
-  /* The empty drawer overlay keeps the stock chat-list width, which
-   * strands its divider border in the middle of the conversation */
-  [data-testid="drawer-middle"] {
-    border-left: none !important;
-  }
-
-  /* Let the app shrink below WhatsApp's default minimum width */
-  #app,
-  #app .two {
-    min-width: 0 !important;
-  }
-}