Collapse label appeal flow into ModerationDetailsDialog

Labels on your own posts previously rendered twice: once as normal
label chips and again as an ominous "1 content label" pill whose only
purpose was reaching the appeal dialog. Move the Appeal button into
ModerationDetailsDialog (shown only when the label targets your own
account or content and was not self-applied), extract AppealForm into
its own module, and remove the redundant per-post pill. The
account-level pill on the profile header is unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/screens/PostThread/components/ThreadItemAnchor.tsx

@@ -42,7 +42,6 @@ import {Trash_Stroke2_Corner0_Rounded as TrashIcon} from '#/components/icons/Tra
 import {GalleryBleed} from '#/components/images/Gallery'
 import {Link} from '#/components/Link'
 import {ContentHider} from '#/components/moderation/ContentHider'
-import {LabelsOnMyPost} from '#/components/moderation/LabelsOnMe'
 import {PostAlerts} from '#/components/moderation/PostAlerts'
 import {type AppModerationCause} from '#/components/Pills'
 import {Embed, PostEmbedViewContext} from '#/components/Post/Embed'
@@ -384,7 +383,6 @@ const ThreadItemAnchorInner = memo(function ThreadItemAnchorInner({
             </View>
           </View>
           <View style={[a.pb_sm]}>
-            <LabelsOnMyPost post={post} style={[a.pb_sm]} />
             <ContentHider
               modui={moderation.ui('contentView')}
               ignoreMute