TF-725 Create InlineImage object

lib/features/composer/presentation/model/image_source.dart

@@ -0,0 +1,5 @@
+
+enum ImageSource {
+  local,
+  network
+}

lib/features/composer/presentation/model/inline_image.dart

@@ -0,0 +1,37 @@
+
+import 'package:core/presentation/extensions/html_extension.dart';
+import 'package:equatable/equatable.dart';
+import 'package:model/model.dart';
+import 'package:tmail_ui_user/features/composer/presentation/model/image_source.dart';
+
+class InlineImage with EquatableMixin {
+  final ImageSource source;
+  final String? link;
+  final FileInfo? fileInfo;
+  final String? cid;
+  final String? base64;
+
+  InlineImage(
+    this.source,
+    {
+      this.link,
+      this.fileInfo,
+      this.cid,
+      this.base64,
+    }
+  );
+
+  Future<String> generateImgTagHtml({double? maxWithEditor}) async {
+    if (source == ImageSource.local && base64 != null) {
+      return base64!.generateImageBase64(
+          cid!,
+          fileInfo!.fileExtension,
+          fileInfo!.fileName,
+          maxWithEditor: maxWithEditor);
+    }
+    return '';
+  }
+
+  @override
+  List<Object?> get props => [source, link, fileInfo, cid];
+}