chore: Slightly adjust welcome screen

assets/l10n/intl_de.arb

@@ -2897,5 +2897,6 @@
   "supportPage": "Support-Seite",
   "@supportPage": {},
   "serverInformation": "Server-Informationen:",
-  "@serverInformation": {}
+  "@serverInformation": {},
+  "appIntroduction": "Mit FluffyChat kannst du über verschiedene Messenger hinweg mit deinen Freunden chatten. Erfahre mehr dazu auf https://matrix.org oder tippe einfach auf *Fortfahren*."
 }

assets/l10n/intl_en.arb

@@ -2839,5 +2839,6 @@
   },
   "appWantsToUseForLoginDescription": "You hereby allow the app and website to share information about you.",
   "open": "Open",
-  "waitingForServer": "Waiting for server..."
+  "waitingForServer": "Waiting for server...",
+  "appIntroduction": "FluffyChat lets you chat with your friends across different messengers. Learn more at https://matrix.org or just tap *Continue*."
 }

lib/pages/homeserver_picker/homeserver_picker_view.dart

@@ -121,7 +121,7 @@ class HomeserverPickerView extends StatelessWidget {
                     Padding(
                       padding: const EdgeInsets.symmetric(horizontal: 32.0),
                       child: SelectableLinkify(
-                        text: L10n.of(context).welcomeText,
+                        text: L10n.of(context).appIntroduction,
                         style: TextStyle(
                           color: theme.colorScheme.onSecondaryContainer,
                           fontWeight: FontWeight.w500,