Adds new plugin [redstone99/hass-alert2-ui] (#3157)

Add Alert2 UI plugin

Co-authored-by: Joakim Sørensen <joasoe@proton.me>

plugin

@@ -298,6 +298,7 @@
   "r-renato/ha-card-weather-conditions",
   "rautesamtr/thermal_comfort_icons",
   "rccoleman/lovelace-lamarzocco-config-card",
+  "redstone99/hass-alert2-ui",
   "rejuvenate/lovelace-horizon-card",
   "reptilex/tesla-style-solar-power-card",
   "rgc99/irrigation-unlimited-card",
@@ -375,4 +376,4 @@
   "zanac/temperature-heatmap-card",
   "zanna-37/hass-swipe-navigation",
   "zeronounours/lovelace-energy-entity-row"
-]
+]