feat: Add warning before adding erc20 token via contract address (#1663)

* feat: Add warning before adding erc20 token via contract address

* fix: Update message on edit token page

* fix: Adjust polygon secrets variable name

* fix: Handle loading state, translate strings and fix other issues

* fix linux build [skip ci]

* fix: Modify warning text for contract address scam alert

* Update secret_key.dart

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

lib/entities/erc20_token_info_explorers.dart

@@ -0,0 +1,80 @@
+class Erc20TokenInfoExplorers {
+  String? contractAddress;
+  String? tokenName;
+  String? symbol;
+  String? divisor;
+  String? tokenType;
+  String? totalSupply;
+  String? blueCheckmark;
+  String? description;
+  String? website;
+  String? email;
+  String? blog;
+  String? reddit;
+  String? slack;
+  String? facebook;
+  String? twitter;
+  String? bitcointalk;
+  String? github;
+  String? telegram;
+  String? wechat;
+  String? linkedin;
+  String? discord;
+  String? whitepaper;
+  String? tokenPriceUSD;
+  String? image;
+
+  Erc20TokenInfoExplorers({
+    this.contractAddress,
+    this.tokenName,
+    this.symbol,
+    this.divisor,
+    this.tokenType,
+    this.totalSupply,
+    this.blueCheckmark,
+    this.description,
+    this.website,
+    this.email,
+    this.blog,
+    this.reddit,
+    this.slack,
+    this.facebook,
+    this.twitter,
+    this.bitcointalk,
+    this.github,
+    this.telegram,
+    this.wechat,
+    this.linkedin,
+    this.discord,
+    this.whitepaper,
+    this.tokenPriceUSD,
+    this.image,
+  });
+
+  Erc20TokenInfoExplorers.fromJson(Map<String, dynamic> json) {
+    contractAddress = json['contractAddress'] as String?;
+    tokenName = json['tokenName'] as String?;
+    symbol = json['symbol'] as String?;
+    divisor = json['divisor'] as String?;
+    tokenType = json['tokenType'] as String?;
+    totalSupply = json['totalSupply'] as String?;
+    blueCheckmark = json['blueCheckmark'] as String?;
+    description = json['description'] as String?;
+    website = json['website'] as String?;
+    email = json['email'] as String?;
+    blog = json['blog'] as String?;
+    reddit = json['reddit'] as String?;
+    slack = json['slack'] as String?;
+    facebook = json['facebook'] as String?;
+    twitter = json['twitter'] as String?;
+    bitcointalk = json['bitcointalk'] as String?;
+    github = json['github'] as String?;
+    telegram = json['telegram'] as String?;
+    wechat = json['wechat'] as String?;
+    linkedin = json['linkedin'] as String?;
+    discord = json['discord'] as String?;
+    whitepaper = json['whitepaper'] as String?;
+    tokenPriceUSD = json['tokenPriceUSD'] as String?;
+    image = json['image'] as String?;
+  }
+}

lib/entities/erc20_token_info_moralis.dart

@@ -0,0 +1,85 @@
+class Erc20TokenInfoMoralis {
+  String? address;
+  String? addressLabel;
+  String? name;
+  String? symbol;
+  String? decimals;
+  String? logo;
+  String? logoHash;
+  String? thumbnail;
+  String? totalSupply;
+  String? totalSupplyFormatted;
+  String? fullyDilutedValuation;
+  String? blockNumber;
+  int? validated;
+  String? createdAt;
+  bool? possibleSpam;
+  bool? verifiedContract;
+  Links? links;
+  int? securityScore;
+
+  Erc20TokenInfoMoralis({
+    this.address,
+    this.addressLabel,
+    this.name,
+    this.symbol,
+    this.decimals,
+    this.logo,
+    this.logoHash,
+    this.thumbnail,
+    this.totalSupply,
+    this.totalSupplyFormatted,
+    this.fullyDilutedValuation,
+    this.blockNumber,
+    this.validated,
+    this.createdAt,
+    this.possibleSpam,
+    this.verifiedContract,
+    this.links,
+    this.securityScore,
+  });
+
+  Erc20TokenInfoMoralis.fromJson(Map<String, dynamic> json) {
+    address = json['address'] as String?;
+    addressLabel = json['address_label'] as String?;
+    name = json['name'] as String?;
+    symbol = json['symbol'] as String?;
+    decimals = json['decimals'] as String?;
+    logo = json['logo'] as String?;
+    logoHash = json['logo_hash'] as String?;
+    thumbnail = json['thumbnail'] as String?;
+    totalSupply = json['total_supply'] as String?;
+    totalSupplyFormatted = json['total_supply_formatted'] as String?;
+    fullyDilutedValuation = json['fully_diluted_valuation'] as String?;
+    blockNumber = json['block_number'] as String?;
+    validated = json['validated'] as int?;
+    createdAt = json['created_at'] as String?;
+    possibleSpam = json['possible_spam'] as bool?;
+    verifiedContract = json['verified_contract'] as bool;
+    links =
+        json['links'] != null ? new Links.fromJson(json['links'] as Map<String, dynamic>) : null;
+    securityScore = json['security_score'] as int?;
+  }
+}
+
+class Links {
+  String? twitter;
+  String? website;
+  String? facebook;
+  String? reddit;
+  String? github;
+  String? linkedin;
+  String? telegram;
+
+  Links({this.twitter, this.website, this.facebook, this.reddit});
+
+  Links.fromJson(Map<String, dynamic> json) {
+    twitter = json['twitter'] as String?;
+    website = json['website'] as String?;
+    facebook = json['facebook'] as String?;
+    reddit = json['reddit'] as String?;
+    github = json['github'] as String?;
+    linkedin = json['linkedin'] as String?;
+    telegram = json['telegram'] as String?;
+  }
+}