fix: clean up Agreed/Not Agreed button icon classes

Icons now use class="mr-1" consistent with all other Lucide icons in the
codebase. Removed hardcoded text-green-500 on Check and bg-red-500/text-white
on X — the button's ae_btn_success_filled/ae_btn_warning_filled classes already
handle theming in both light and dark mode via Skeleton presets.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/events/[event_id]/(pres_mgmt)/presenter/[presenter_id]/presenter_page_menu.svelte

@@ -124,7 +124,7 @@ async function on_delete(method: 'delete' | 'disable') {
                             }}
                             class="btn btn-sm ae_btn_success_filled mx-1 font-bold"
                             title="Agreed to terms and conditions">
-                            <Check size="1em" class="px-1 text-green-500" />
+                            <Check size="1em" class="mr-1" />
                             Agreed
                         </button>
                     {:else}
@@ -141,9 +141,7 @@ async function on_delete(method: 'delete' | 'disable') {
                             }}
                             class="btn btn-sm ae_btn_warning_filled mx-1 font-bold"
                             title="View terms and conditions">
-                            <X
-                                size="1em"
-                                class="mx-1 bg-red-500 px-1 text-white" />
+                            <X size="1em" class="mr-1" />
                             Not yet agreed
                         </button>
                     {/if}