fix: In lemma definition request, use lemma.form if no lemma.text and log error to sentry (#1376)

lib/pangea/models/pangea_token_model.dart

@@ -524,7 +524,7 @@ class PangeaToken {
 
   Future<List<String>> getEmojiChoices() => LemmaDictionaryRepo.get(
         LemmaDefinitionRequest(
-          lemma: lemma.text,
+          lemma: lemma,
           partOfSpeech: pos,
           lemmaLang: MatrixState
                   .pangeaController.languageController.userL2?.langCode ??

lib/pangea/repo/lemma_definition_repo.dart

@@ -2,31 +2,40 @@ import 'dart:convert';
 
 import 'package:http/http.dart';
 
+import 'package:fluffychat/pangea/models/lemma.dart';
 import 'package:fluffychat/pangea/network/urls.dart';
+import 'package:fluffychat/pangea/utils/error_handler.dart';
 import 'package:fluffychat/widgets/matrix.dart';
 import '../config/environment.dart';
 import '../network/requests.dart';
 
 class LemmaDefinitionRequest {
-  final String lemma;
+  final Lemma _lemma;
   final String partOfSpeech;
   final String lemmaLang;
   final String userL1;
 
   LemmaDefinitionRequest({
-    required this.lemma,
     required this.partOfSpeech,
     required this.lemmaLang,
     required this.userL1,
-  });
+    required Lemma lemma,
+  }) : _lemma = lemma;
 
-  factory LemmaDefinitionRequest.fromJson(Map<String, dynamic> json) {
-    return LemmaDefinitionRequest(
-      lemma: json['lemma'] as String,
-      partOfSpeech: json['part_of_speech'] as String,
-      lemmaLang: json['lemma_lang'] as String,
-      userL1: json['user_l1'] as String,
+  String get lemma {
+    if (_lemma.text.isNotEmpty) {
+      return _lemma.text;
+    }
+    ErrorHandler.logError(
+      e: "Found lemma with empty text",
+      data: {
+        'lemma': _lemma,
+        'part_of_speech': partOfSpeech,
+        'lemma_lang': lemmaLang,
+        'user_l1': userL1,
+      },
     );
+    return _lemma.form;
   }
 
   Map<String, dynamic> toJson() {

lib/pangea/repo/practice/word_meaning_activity_generator.dart

@@ -21,7 +21,7 @@ class WordMeaningActivityGenerator {
     );
 
     final LemmaDefinitionRequest lemmaDefReq = LemmaDefinitionRequest(
-      lemma: lemmaId.lemma,
+      lemma: req.targetTokens[0].lemma,
       partOfSpeech: lemmaId.category,
 
       /// This assumes that the user's L2 is the language of the lemma

lib/pangea/widgets/word_zoom/contextual_translation_widget.dart

@@ -20,7 +20,7 @@ class ContextualTranslationWidget extends StatelessWidget {
 
   Future<String> _fetchDefinition() async {
     final LemmaDefinitionRequest lemmaDefReq = LemmaDefinitionRequest(
-      lemma: token.lemma.text,
+      lemma: token.lemma,
       partOfSpeech: token.pos,
 
       /// This assumes that the user's L2 is the language of the lemma

lib/pangea/widgets/word_zoom/lemma_definition_widget.dart

@@ -36,7 +36,7 @@ class LemmaDefinitionWidgetState extends State<LemmaDefinitionWidget> {
     } else {
       final res = await LemmaDictionaryRepo.get(
         LemmaDefinitionRequest(
-          lemma: widget.token.lemma.text,
+          lemma: widget.token.lemma,
           partOfSpeech: widget.token.pos,
           lemmaLang: widget.tokenLang,
           userL1: MatrixState