cosmos_ui_components improvements (#95)

Author: andrzejchm

packages/cosmos_ui_components/lib/components/cosmos_app_bar.dart

@@ -2,16 +2,19 @@ import 'package:flutter/material.dart';
 
 class CosmosAppBar extends StatelessWidget implements PreferredSizeWidget {
   final String title;
+  final List<Widget>? actions;
 
   const CosmosAppBar({
     Key? key,
     this.title = "",
+    this.actions,
   }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return AppBar(
       title: Text(title),
+      actions: actions,
     );
   }
 

packages/cosmos_ui_components/lib/components/template/cosmos_password_field.dart

@@ -2,8 +2,14 @@ import 'package:flutter/material.dart';
 
 class CosmosPasswordField extends StatefulWidget {
   final Function(String) onPasswordUpdated;
+  final String? helperText;
+  final String hintText;
 
-  const CosmosPasswordField({required this.onPasswordUpdated});
+  const CosmosPasswordField({
+    required this.onPasswordUpdated,
+    this.helperText = 'This password will be used to recover your account every time you log in to the app',
+    this.hintText = 'Enter password',
+  });
 
   @override
   _CosmosPasswordFieldState createState() => _CosmosPasswordFieldState();
@@ -22,8 +28,8 @@ class _CosmosPasswordFieldState extends State<CosmosPasswordField> {
         widget.onPasswordUpdated(value);
       },
       decoration: InputDecoration(
-        hintText: 'Enter password',
-        helperText: 'This password will be used to recover your account every time you log in to the app',
+        hintText: widget.hintText,
+        helperText: widget.helperText,
         helperMaxLines: 3,
         suffixIcon: InkWell(
           onTap: togglePasswordVisibility,

packages/cosmos_ui_components/lib/cosmos_app_theme.dart

@@ -31,6 +31,9 @@ class CosmosAppTheme {
         brightness: Brightness.light,
         backgroundColor: CosmosColors.lightBg,
         foregroundColor: CosmosColors.onLightText,
+        actionsIconTheme: IconThemeData(
+          color: CosmosColors.onLightText,
+        ),
         textTheme: TextTheme(
           headline6: TextStyle(
             fontSize: 20,