style: update various buttons to align with global styling

client/src/app/lists/addList.tsx

@@ -211,7 +211,7 @@ export function AddList({
 
       <Dialog open={modalOpen} onOpenChange={setModalOpen}>
         <DialogTrigger asChild>
-          <Button className="shadow-sm hover:shadow-md transition-all duration-200">
+          <Button>
             <PlusIcon className="mr-2" size={18} />
             Add List
           </Button>

client/src/app/lists/details.tsx

@@ -317,8 +317,8 @@ export function CardDetails(
               <Button
                 disabled={deletingList}
                 onClick={deleteList}
-                variant="outline"
-                className="bg-red-600 border-none hover:bg-red-500 text-white flex-1 text-sm"
+                variant="destructive"
+                className="flex-1"
               >
                 {deletingList ? (
                   <div className="flex">

client/src/app/lists/updateCustom.tsx

@@ -67,11 +67,7 @@ export function UpdateCustom() {
     <div className="mb-5">
       <Dialog open={dialogOpen} onOpenChange={setDialogOpen}>
         <DialogTrigger asChild>
-          <Button
-            variant="outline"
-            className="shadow-sm hover:shadow-md transition-all duration-200 border-2 hover:border-blue-300"
-            onClick={() => setDialogOpen(true)}
-          >
+          <Button variant="outline" onClick={() => setDialogOpen(true)}>
             <ArrowsClockwiseIcon className="mr-2" size={18} />
             Update Custom
           </Button>

client/src/pages/logs.tsx

@@ -458,11 +458,7 @@ export function Logs() {
 
         <Dialog open={isModalOpen} onOpenChange={setIsModalOpen}>
           <DialogTrigger asChild className="ml-5">
-            <Button
-              disabled={queries.length === 0}
-              variant="outline"
-              className="bg-red-950 hover:bg-red-900 border-1 border-red-900 text-white transition-all duration-200 hover:scale-105"
-            >
+            <Button disabled={queries.length === 0} variant="destructive">
               Clear logs
             </Button>
           </DialogTrigger>

client/src/pages/prefetch.tsx

@@ -353,7 +353,6 @@ export function Prefetch() {
         <div className="flex justify-end p-4">
           <Button
             variant="default"
-            className="bg-green-600 hover:bg-green-700 text-white"
             onClick={handleSave}
             disabled={submitting || !isFormValid}
           >