Refactored several theme settings into custom theme

lib/presentation/widgets/tiles/choose_tile.dart

@@ -32,8 +32,8 @@ class _ChooseTileState extends State<ChooseTile> {
     return GestureDetector(
       onTap: widget.onPressed,
       child: Container(
-        margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 5),
-        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 15),
+        margin: CustomTheme.tileMargin,
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
         decoration: CustomTheme.standardBoxDecoration,
         child: Row(
           children: [

lib/presentation/widgets/tiles/custom_radio_list_tile.dart

@@ -32,7 +32,7 @@ class CustomRadioListTile<T> extends StatelessWidget {
         decoration: BoxDecoration(
           color: CustomTheme.boxColor,
           border: Border.all(color: CustomTheme.boxBorder),
-          borderRadius: BorderRadius.circular(12),
+          borderRadius: CustomTheme.standardBorderRadiusAll,
         ),
         child: Row(
           children: [

lib/presentation/widgets/tiles/group_tile.dart

@@ -18,7 +18,7 @@ class GroupTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return AnimatedContainer(
-      margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+      margin: CustomTheme.standardMargin,
       padding: const EdgeInsets.symmetric(vertical: 5, horizontal: 10),
       decoration: isHighlighted
           ? CustomTheme.highlightedBoxDecoration

lib/presentation/widgets/tiles/match_tile.dart

@@ -41,8 +41,8 @@ class _MatchTileState extends State<MatchTile> {
     return GestureDetector(
       onTap: widget.onTap,
       child: Container(
-        margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
-        padding: const EdgeInsets.all(16),
+        margin: CustomTheme.tileMargin,
+        padding: const EdgeInsets.all(12),
         decoration: BoxDecoration(
           color: CustomTheme.boxColor,
           border: Border.all(color: CustomTheme.boxBorder),
@@ -118,7 +118,7 @@ class _MatchTileState extends State<MatchTile> {
                         style: const TextStyle(
                           fontSize: 14,
                           fontWeight: FontWeight.w600,
-                          color: Colors.white,
+                          color: CustomTheme.textColor,
                         ),
                         overflow: TextOverflow.ellipsis,
                       ),