fix: Darktheme contrast fixes with primary color

lib/pages/bootstrap/bootstrap_dialog.dart

@@ -273,7 +273,7 @@ class BootstrapDialogState extends State<BootstrapDialog> {
                       style: ElevatedButton.styleFrom(
                         foregroundColor:
                             Theme.of(context).colorScheme.onPrimary,
-                        backgroundColor: Theme.of(context).primaryColor,
+                        backgroundColor: Theme.of(context).colorScheme.primary,
                       ),
                       icon: _recoveryKeyInputLoading
                           ? const CircularProgressIndicator.adaptive()

lib/pages/chat/events/message.dart

@@ -391,8 +391,8 @@ class Message extends StatelessWidget {
               children: [
                 Container(
                   color: selected
-                      ? Theme.of(context).primaryColor.withAlpha(100)
-                      : Theme.of(context).primaryColor.withAlpha(0),
+                      ? Theme.of(context).colorScheme.primary.withAlpha(100)
+                      : Colors.transparent,
                   constraints: const BoxConstraints(
                     maxWidth: FluffyThemes.columnWidth * 2.5,
                   ),
@@ -410,7 +410,7 @@ class Message extends StatelessWidget {
                     child: Material(
                       color: Theme.of(context)
                           .colorScheme
-                          .background
+                          .surfaceVariant
                           .withOpacity(0.9),
                       elevation: Theme.of(context)
                               .appBarTheme

lib/pages/chat/events/message_reactions.dart

@@ -154,7 +154,7 @@ class _Reaction extends StatelessWidget {
           border: reacted!
               ? Border.all(
                   width: 1,
-                  color: Theme.of(context).primaryColor,
+                  color: Theme.of(context).colorScheme.primary,
                 )
               : null,
           borderRadius: BorderRadius.circular(AppConfig.borderRadius),

lib/pages/chat/reply_display.dart

@@ -64,7 +64,7 @@ class _EditContent extends StatelessWidget {
       children: <Widget>[
         Icon(
           Icons.edit,
-          color: Theme.of(context).primaryColor,
+          color: Theme.of(context).colorScheme.primary,
         ),
         Container(width: 15.0),
         FutureBuilder<String>(

lib/pages/chat_details/chat_details_view.dart

@@ -399,7 +399,8 @@ class ChatDetailsView extends StatelessWidget {
                           ListTile(
                             title: Text(L10n.of(context)!.inviteContact),
                             leading: CircleAvatar(
-                              backgroundColor: Theme.of(context).primaryColor,
+                              backgroundColor:
+                                  Theme.of(context).colorScheme.primary,
                               foregroundColor: Colors.white,
                               radius: Avatar.defaultSize / 2,
                               child: const Icon(Icons.add_outlined),

lib/pages/chat_list/chat_list_item.dart

@@ -186,7 +186,7 @@ class ChatListItem extends StatelessWidget {
                     width: Avatar.defaultSize,
                     height: Avatar.defaultSize,
                     child: Material(
-                      color: Theme.of(context).primaryColor,
+                      color: Theme.of(context).colorScheme.primary,
                       borderRadius: BorderRadius.circular(Avatar.defaultSize),
                       child: const Icon(Icons.check, color: Colors.white),
                     ),

lib/pages/chat_permissions_settings/chat_permissions_settings_view.dart

@@ -59,7 +59,7 @@ class ChatPermissionsSettingsView extends StatelessWidget {
                       title: Text(
                         L10n.of(context)!.notifications,
                         style: TextStyle(
-                          color: Theme.of(context).primaryColor,
+                          color: Theme.of(context).colorScheme.primary,
                           fontWeight: FontWeight.bold,
                         ),
                       ),
@@ -89,7 +89,7 @@ class ChatPermissionsSettingsView extends StatelessWidget {
                       title: Text(
                         L10n.of(context)!.configureChat,
                         style: TextStyle(
-                          color: Theme.of(context).primaryColor,
+                          color: Theme.of(context).colorScheme.primary,
                           fontWeight: FontWeight.bold,
                         ),
                       ),

lib/pages/key_verification/key_verification_dialog.dart

@@ -139,8 +139,10 @@ class KeyVerificationPageState extends State<KeyVerificationDialog> {
                 obscureText: true,
                 decoration: InputDecoration(
                   hintText: L10n.of(context)!.passphraseOrKey,
-                  prefixStyle: TextStyle(color: Theme.of(context).primaryColor),
-                  suffixStyle: TextStyle(color: Theme.of(context).primaryColor),
+                  prefixStyle:
+                      TextStyle(color: Theme.of(context).colorScheme.primary),
+                  suffixStyle:
+                      TextStyle(color: Theme.of(context).colorScheme.primary),
                   border: const OutlineInputBorder(),
                 ),
               ),

lib/pages/new_private_chat/qr_scanner_modal.dart

@@ -45,7 +45,7 @@ class QrScannerModalState extends State<QrScannerModal> {
             key: qrKey,
             onQRViewCreated: _onQRViewCreated,
             overlay: QrScannerOverlayShape(
-              borderColor: Theme.of(context).primaryColor,
+              borderColor: Theme.of(context).colorScheme.primary,
               borderRadius: 10,
               borderLength: 30,
               borderWidth: 8,