fix: improve scrolling in Show Request Logs (#853)

# PR Checklist
- [ ] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [ ] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?

# Description
This PR introduces following:
- Make only markdown content scrollable while keeping OK button visible

src/lib/Others/AlertComp.svelte

@@ -96,11 +96,13 @@
                 <h2 class="text-green-700 mt-0 mb-2 w-40 max-w-full">Input</h2>
             {/if}
             {#if $alertStore.type === 'markdown'}
+                <div class="overflow-y-auto">
                     <span class="text-gray-300 chattext prose chattext2" class:prose-invert={$ColorSchemeTypeStore}>
                         {#await ParseMarkdown($alertStore.msg) then msg}
                             {@html msg}                        
                         {/await}
                     </span>
+                </div>
             {:else if $alertStore.type === 'tos'}
                 <!-- svelte-ignore a11y_missing_attribute -->
                 <!-- svelte-ignore a11y_click_events_have_key_events -->