api: Add realmName and realmIcon in intial snapshot

Author: chimnayajith

lib/api/model/initial_snapshot.dart

@@ -71,6 +71,7 @@ class InitialSnapshot {
 
   final bool realmMandatoryTopics;
 
+  final String realmName;
   /// The number of days until a user's account is treated as a full member.
   ///
   /// Search for "realm_waiting_period_threshold" in https://zulip.com/api/register-queue.
@@ -81,6 +82,8 @@ class InitialSnapshot {
 
   final Map<String, RealmDefaultExternalAccount> realmDefaultExternalAccounts;
 
+  final String realmIconUrl;
+
   final int maxFileUploadSizeMib;
 
   final Uri? serverEmojiDataUrl; // TODO(server-6)
@@ -134,8 +137,10 @@ class InitialSnapshot {
     required this.userTopics,
     required this.realmWildcardMentionPolicy,
     required this.realmMandatoryTopics,
+    required this.realmName,
     required this.realmWaitingPeriodThreshold,
     required this.realmDefaultExternalAccounts,
+    required this.realmIconUrl,
     required this.maxFileUploadSizeMib,
     required this.serverEmojiDataUrl,
     required this.realmUsers,

lib/api/model/initial_snapshot.g.dart

@@ -856,10 +856,12 @@ InitialSnapshot initialSnapshot({
   List<ZulipStream>? streams,
   UserSettings? userSettings,
   List<UserTopicItem>? userTopics,
+  String? realmName,
   RealmWildcardMentionPolicy? realmWildcardMentionPolicy,
   bool? realmMandatoryTopics,
   int? realmWaitingPeriodThreshold,
   Map<String, RealmDefaultExternalAccount>? realmDefaultExternalAccounts,
+  String? realmIconUrl,
   int? maxFileUploadSizeMib,
   Uri? serverEmojiDataUrl,
   List<User>? realmUsers,
@@ -892,10 +894,12 @@ InitialSnapshot initialSnapshot({
       emojiset: Emojiset.google,
     ),
     userTopics: userTopics,
+    realmName: realmName ?? "Example Name",
     realmWildcardMentionPolicy: realmWildcardMentionPolicy ?? RealmWildcardMentionPolicy.everyone,
     realmMandatoryTopics: realmMandatoryTopics ?? true,
     realmWaitingPeriodThreshold: realmWaitingPeriodThreshold ?? 0,
     realmDefaultExternalAccounts: realmDefaultExternalAccounts ?? {},
+    realmIconUrl: realmIconUrl ?? "https://example.com/image.png",
     maxFileUploadSizeMib: maxFileUploadSizeMib ?? 25,
     serverEmojiDataUrl: serverEmojiDataUrl
       ?? realmUrl.replace(path: '/static/emoji.json'),