fix(ui): apply select-none to remaining dropdown menus globally to prevent text highlighting (#21763)

src/lib/components/workspace/Prompts/PromptHistoryMenu.svelte

@@ -69,7 +69,7 @@
 				</Tooltip>
 			{:else}
 				<DropdownMenu.Item
-					class="flex gap-2 items-center px-3 py-1.5 text-sm cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-800 rounded-xl"
+					class="select-none flex gap-2 items-center px-3 py-1.5 text-sm cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-800 rounded-xl"
 					on:click={() => {
 						show = false;
 						showDeleteConfirmDialog = true;