Minor cleanup, added strings, added more information to response when error occurs

client/package-lock.json

@@ -9122,7 +9122,8 @@
     "merge": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/merge/-/merge-1.2.1.tgz",
-      "integrity": "sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ=="
+      "integrity": "sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==",
+      "dev": true
     },
     "merge-descriptors": {
       "version": "1.0.1",

client/src/__locales/en.json

@@ -160,7 +160,7 @@
     "filter_label": "Filter",
     "unknown_filter": "Unknown filter {{filterId}}",
     "install_welcome_title": "Welcome to AdGuard Home!",
-    "install_welcome_desc": "Lorem ipsum dolor sit amet consectetur adipisicing elit.",
+    "install_welcome_desc": "AdGuard Home is a network-wide ad-and-tracker blocking DNS server. Its purpose is to let you control your entire network and all your devices, and it does not require using a client-side program.",
     "install_settings_title": "Admin Web Interface",
     "install_settings_listen": "Listen interface",
     "install_settings_port": "Port",