removed hardcoded keys

Author: OmkarDabade

lib/widgets/markdown_field.dart

@@ -121,7 +121,8 @@ class MarkdownField extends StatelessWidget {
     return Padding(
       padding: padding,
       child: TextField(
-        key: const ValueKey<String>("markdown_editor_plus"),
+        key: key,
+        // const ValueKey<String>("markdown_editor_plus"),
         maxLines: expands ? null : maxLines,
         minLines: expands ? null : minLines,
         expands: expands,

lib/widgets/markdown_parse.dart

@@ -105,7 +105,8 @@ class MarkdownParse extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Markdown(
-      key: const Key("default-markdown-formatter"),
+      key: key,
+      // const Key("default-markdown-formatter"),
       data: data,
       selectable: selectable,
       padding: const EdgeInsets.all(8),

lib/widgets/markdown_parse_body.dart

@@ -95,7 +95,8 @@ class MarkdownParseBody extends StatelessWidget {
     return Padding(
       padding: const EdgeInsets.all(8.0),
       child: MarkdownBody(
-        key: const Key("default-non-scrolling-markdown-formatter"),
+        key: key,
+        // const Key("default-non-scrolling-markdown-formatter"),
         data: data,
         selectable: selectable,
         shrinkWrap: shrinkWrap,