feat: trim user input

lib/ui/add_page/widgets/confirmation_popup.dart

@@ -143,6 +143,12 @@ class _ConfirmationPopupState extends State<ConfirmationPopup> {
                       TextButton(
                         onPressed: () {
                           widget.exitPopup(context);
+                          ScaffoldMessenger.of(context).showSnackBar(
+                            SnackBar(
+                              content: Text("Enregistré: ${widget.book.title}"),
+                              behavior: SnackBarBehavior.floating,
+                            ),
+                          );
                         },
                         child: Text("Ok"),
                       ),

lib/ui/add_page/widgets/form_popup.dart

@@ -243,7 +243,7 @@ class _FullyManualState extends State<_FullyManual> {
                 return null;
               },
               onSaved: (newValue) {
-                title = newValue;
+                title = newValue?.trim();
               },
             ),
             SizedBox(height: 10),
@@ -259,7 +259,7 @@ class _FullyManualState extends State<_FullyManual> {
                 return null;
               },
               onSaved: (newValue) {
-                author = newValue;
+                author = newValue?.trim();
               },
             ),
             SizedBox(height: 10),

lib/ui/add_page/widgets/owner_popup.dart

@@ -87,7 +87,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                lastName = newValue;
+                                lastName = newValue?.trim();
                               });
                             },
                             validator: (value) {
@@ -105,7 +105,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                firstName = newValue;
+                                firstName = newValue?.trim();
                               });
                             },
                             validator: (value) {
@@ -123,7 +123,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                contact = newValue;
+                                contact = newValue?.trim();
                               });
                             },
                             validator: (value) {

lib/ui/bal_page/widget/pending/bal_pending_screen.dart

@@ -134,7 +134,7 @@ class _EditPopup extends State<EditPopup> {
                     return null;
                   },
                   onSaved: (newValue) {
-                    name = newValue;
+                    name = newValue?.trim();
                   },
                 ),
                 Row(

lib/ui/home_page/widgets/create_confirmation_popup.dart

@@ -61,7 +61,7 @@ class _CreateConfirmationPopupState extends State<CreateConfirmationPopup> {
                     return null;
                   },
                   onSaved: (newValue) {
-                    name = newValue;
+                    name = newValue?.trim();
                   },
                 ),
                 Row(