Merge origin/main into the 0.5.0 redesign

Brings in 0.4.8: connection log, uninstall and update from the awg-ctrl menu,
secret panel path, stealth hub and sen:// port, random I1/MTU on install.
install.sh keeps the new output (spinner, cards, outdated-install wipe) on top
of the reorganised installer; an outdated install can be reinstalled with a
wipe or removed. The connection log tab uses the MD3 segmented button; its
metrics-token scrape snippet moved to Settings.

awg-ui/src/tabs/settings/settings.css

@@ -117,3 +117,6 @@ LICENSE file in the root directory of this source tree.
     .st-row-ctl { width: 100%; }
     .st-row-ctl .btn { flex: 1; }
 }
+
+/* Фрагмент prometheus.yml в диалоге токена: переносы строк сохраняются */
+.st-yml { white-space: pre-wrap; margin: 0; text-align: left; }