chore: Update xterm

From version 5.4.0 onwards, xterm scopes its package names as
`@xterm/foo` instead of just `xterm-foo`.

We currently have a copy of xterm.css which we use instead of directly
including the one from the `@xterm/xterm` package, so I've updated the
contents of that too.

package-lock.json

@@ -4071,6 +4071,19 @@
         }
       }
     },
+    "node_modules/@xterm/addon-fit": {
+      "version": "0.10.0",
+      "resolved": "https://registry.npmjs.org/@xterm/addon-fit/-/addon-fit-0.10.0.tgz",
+      "integrity": "sha512-UFYkDm4HUahf2lnEyHvio51TNGiLK66mqP2JoATy7hRZeXaGMRDr00JiSF7m63vR5WKATF605yEggJKsw0JpMQ==",
+      "peerDependencies": {
+        "@xterm/xterm": "^5.0.0"
+      }
+    },
+    "node_modules/@xterm/xterm": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/@xterm/xterm/-/xterm-5.5.0.tgz",
+      "integrity": "sha512-hqJHYaQb5OptNunnyAnkHyM8aCjZ1MEIDTQu1iIbbTD/xops91NB5yq1ZK/dC2JDbVWtF23zUtl9JE2NqwT87A=="
+    },
     "node_modules/@xtuc/ieee754": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz",
@@ -11561,9 +11574,7 @@
         "fs-mode-to-string": "^0.0.2",
         "json-query": "^2.2.2",
         "path-browserify": "^1.0.1",
-        "sinon": "^17.0.1",
-        "xterm": "^5.1.0",
-        "xterm-addon-fit": "^0.7.0"
+        "sinon": "^17.0.1"
       },
       "devDependencies": {
         "@rollup/plugin-commonjs": "^24.1.0",
@@ -12131,17 +12142,6 @@
         "defaults": "^1.0.3"
       }
     },
-    "packages/phoenix/node_modules/xterm": {
-      "version": "5.1.0",
-      "license": "MIT"
-    },
-    "packages/phoenix/node_modules/xterm-addon-fit": {
-      "version": "0.7.0",
-      "license": "MIT",
-      "peerDependencies": {
-        "xterm": "^5.0.0"
-      }
-    },
     "packages/phoenix/packages/contextlink": {
       "version": "0.0.0",
       "extraneous": true,
@@ -12180,8 +12180,8 @@
       "version": "0.0.0",
       "license": "AGPL-3.0-only",
       "dependencies": {
-        "xterm": "^5.3.0",
-        "xterm-addon-fit": "^0.7.0"
+        "@xterm/addon-fit": "^0.10.0",
+        "@xterm/xterm": "^5.5.0"
       },
       "devDependencies": {
         "@rollup/plugin-commonjs": "^24.1.0",
@@ -12723,17 +12723,6 @@
       "engines": {
         "node": ">=12"
       }
-    },
-    "packages/terminal/node_modules/xterm": {
-      "version": "5.3.0",
-      "license": "MIT"
-    },
-    "packages/terminal/node_modules/xterm-addon-fit": {
-      "version": "0.7.0",
-      "license": "MIT",
-      "peerDependencies": {
-        "xterm": "^5.0.0"
-      }
     }
   }
 }

packages/terminal/assets/xterm.css

@@ -140,7 +140,7 @@
     cursor: crosshair;
 }
 
-.xterm .xterm-accessibility,
+.xterm .xterm-accessibility:not(.debug),
 .xterm .xterm-message {
     position: absolute;
     left: 0;
@@ -152,6 +152,15 @@
     pointer-events: none;
 }
 
+.xterm .xterm-accessibility-tree:not(.debug) *::selection {
+    color: transparent;
+}
+
+.xterm .xterm-accessibility-tree {
+    user-select: text;
+    white-space: pre;
+}
+
 .xterm .live-region {
     position: absolute;
     left: -9999px;

packages/terminal/package.json

@@ -19,7 +19,7 @@
     "rollup-plugin-copy": "^3.4.0"
   },
   "dependencies": {
-    "xterm": "^5.3.0",
-    "xterm-addon-fit": "^0.7.0"
+    "@xterm/xterm": "^5.5.0",
+    "@xterm/addon-fit": "^0.10.0"
   }
 }

packages/terminal/src/main.js

@@ -16,8 +16,8 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-import { Terminal } from 'xterm';
-import { FitAddon } from 'xterm-addon-fit';
+import { Terminal } from '@xterm/xterm';
+import { FitAddon } from '@xterm/addon-fit';
 import { PTY } from './pty/PTY';
 import { XDocumentANSIShell } from './pty/XDocumentANSIShell';