[FE] UI Enhancement: Update Confirmation Dialog on "Create Visitor Password" Flow (#310)

… the requested ticket)

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## Jira Ticket
[SP-1660](https://syncrow.atlassian.net/browse/SP-1660)

## Description
enhance UI in create visitor insure dialog as wanted in Ticket (in figma
not updated yet)

## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [ ] ✨ New feature (non-breaking change which adds functionality)
- [x] 🛠️ Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 Code refactor
- [ ] ✅ Build configuration change
- [ ] 📝 Documentation
- [ ] 🗑️ Chore 


[SP-1660]:
https://syncrow.atlassian.net/browse/SP-1660?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

lib/pages/visitor_password/view/visitor_password_dialog.dart

@@ -574,8 +574,9 @@ class VisitorPasswordDialog extends StatelessWidget {
             } else {
               return AlertDialog(
                 alignment: Alignment.center,
+                backgroundColor: Colors.white,
                 content: SizedBox(
-                  height: size.height * 0.25,
+                  height: size.height * 0.13,
                   child: Column(
                     children: [
                       Column(
@@ -589,11 +590,16 @@ class VisitorPasswordDialog extends StatelessWidget {
                               width: 35,
                             ),
                           ),
+                          const SizedBox(
+                            height: 20,
+                          ),
                           Text(
                             'Set Password',
-                            style:
-                                Theme.of(context).textTheme.headlineLarge!.copyWith(
-                                      fontSize: 30,
+                            style: Theme.of(context)
+                                .textTheme
+                                .headlineLarge!
+                                .copyWith(
+                                  fontSize: 24,
                                   fontWeight: FontWeight.w400,
                                   color: Colors.black,
                                 ),
@@ -601,15 +607,6 @@ class VisitorPasswordDialog extends StatelessWidget {
                         ],
                       ),
                       const SizedBox(width: 15),
-                      Text(
-                        'This action will update all of the selected\n door locks passwords in the property.\n\nAre you sure you want to continue?',
-                        textAlign: TextAlign.center,
-                        style: Theme.of(context).textTheme.bodyMedium!.copyWith(
-                              color: ColorsManager.grayColor,
-                              fontWeight: FontWeight.w400,
-                              fontSize: 18,
-                            ),
-                      ),
                     ],
                   ),
                 ),
@@ -638,6 +635,7 @@ class VisitorPasswordDialog extends StatelessWidget {
                     decoration: containerDecoration,
                     width: size.width * 0.1,
                     child: DefaultButton(
+                      backgroundColor: Color(0xff023DFE),
                       borderRadius: 8,
                       onPressed: () {
                         Navigator.pop(context);
@@ -681,7 +679,7 @@ class VisitorPasswordDialog extends StatelessWidget {
                         }
                       },
                       child: Text(
-                        'Ok',
+                        'Confirm',
                         style: Theme.of(context).textTheme.bodySmall!.copyWith(
                               fontWeight: FontWeight.w400,
                               color: ColorsManager.whiteColors,