fix(viewer): replace text arrow share icon with SVG share glyph

Co-Authored-By: Claude Code <noreply@anthropic.com>

apps/mobile/lib/l10n/app_en.arb

@@ -80,6 +80,10 @@
   "formTitleRequiredWithFields": "Title is required when description, venue or address is filled",
   "formEndAtNotAfterStartAt": "End time must be after start time",
   "formEventDetails": "Event details",
+  "coverPicker": "Album cover",
+  "coverPickerHint": "Tap to select a cover image (optional)",
+  "coverSelected": "Cover selected, will upload on save",
+  "coverUploadFailed": "Cover upload failed, you can retry from album detail later",
   "formDescriptionLanguages": "Description & languages",
   "formDefaultLanguage": "Default language",
   "formDetailsTab": "Details",

apps/mobile/lib/l10n/app_localizations.dart

@@ -572,6 +572,30 @@ abstract class AppLocalizations {
   /// **'活动信息'**
   String get formEventDetails;
 
+  /// No description provided for @coverPicker.
+  ///
+  /// In zh, this message translates to:
+  /// **'相册封面'**
+  String get coverPicker;
+
+  /// No description provided for @coverPickerHint.
+  ///
+  /// In zh, this message translates to:
+  /// **'点击选择封面图片（可选）'**
+  String get coverPickerHint;
+
+  /// No description provided for @coverSelected.
+  ///
+  /// In zh, this message translates to:
+  /// **'已选择封面，保存后上传'**
+  String get coverSelected;
+
+  /// No description provided for @coverUploadFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'封面上传失败，可稍后在相册详情中重新上传'**
+  String get coverUploadFailed;
+
   /// No description provided for @formDescriptionLanguages.
   ///
   /// In zh, this message translates to:

apps/mobile/lib/l10n/app_localizations_en.dart

@@ -254,6 +254,19 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get formEventDetails => 'Event details';
 
+  @override
+  String get coverPicker => 'Album cover';
+
+  @override
+  String get coverPickerHint => 'Tap to select a cover image (optional)';
+
+  @override
+  String get coverSelected => 'Cover selected, will upload on save';
+
+  @override
+  String get coverUploadFailed =>
+      'Cover upload failed, you can retry from album detail later';
+
   @override
   String get formDescriptionLanguages => 'Description & languages';
 

apps/mobile/lib/l10n/app_localizations_zh.dart

@@ -248,6 +248,18 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get formEventDetails => '活动信息';
 
+  @override
+  String get coverPicker => '相册封面';
+
+  @override
+  String get coverPickerHint => '点击选择封面图片（可选）';
+
+  @override
+  String get coverSelected => '已选择封面，保存后上传';
+
+  @override
+  String get coverUploadFailed => '封面上传失败，可稍后在相册详情中重新上传';
+
   @override
   String get formDescriptionLanguages => '描述与语言';
 

apps/mobile/lib/l10n/app_zh.arb

@@ -80,6 +80,10 @@
   "formTitleRequiredWithFields": "填写了描述/场地/地址时，标题不能为空",
   "formEndAtNotAfterStartAt": "结束时间必须晚于开始时间",
   "formEventDetails": "活动信息",
+  "coverPicker": "相册封面",
+  "coverPickerHint": "点击选择封面图片（可选）",
+  "coverSelected": "已选择封面，保存后上传",
+  "coverUploadFailed": "封面上传失败，可稍后在相册详情中重新上传",
   "formDescriptionLanguages": "描述与语言",
   "formDefaultLanguage": "默认语言",
   "formDetailsTab": "详情",