fix(reader): resolve KOReader sync conflict against non-KOReader servers (#4205)

The sync-conflict dialog had two issues with servers other than KOReader
(e.g. Kavita's KOReader-compatible sync endpoint):

- "This device" preview rendered a bare "undefined" because reflowable
  books built the string from `sectionLabel`, which is empty for spine
  items with no matching TOC entry. It now falls back to the page count.
- Choosing "use remote" closed the dialog but never moved the reader:
  `applyRemoteProgress` only knew how to navigate via CREngine XPointers,
  so non-XPointer progress strings were silently ignored. It now falls
  back to `view.goToFraction` using the reported percentage.

Also fixes the section-title indentation in the dialog (SectionTitle
bakes in `ps-4`, which misaligned the labels against their values).

Closes #4200

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/readest-app/src/app/reader/components/KOSyncResolver.tsx

@@ -50,7 +50,7 @@ const KOSyncConflictResolver: React.FC<KOSyncConflictResolverProps> = ({
                 `as='span'` because this lives inside a button, not as a
                 document heading; opacity override expresses the
                 "secondary on this surface" relationship. */}
-            <SectionTitle as='span' className='!text-base-content/55'>
+            <SectionTitle as='span' className='!text-base-content/55 !ps-0'>
               {_('This device')}
             </SectionTitle>
             <span className='line-clamp-2 text-sm font-medium leading-snug'>
@@ -72,7 +72,7 @@ const KOSyncConflictResolver: React.FC<KOSyncConflictResolverProps> = ({
             {/* On the primary-color button background the default
                 /65 token would clash; opacity-75 inherits the button's
                 contrast color and dims it uniformly. */}
-            <SectionTitle as='span' className='!text-current opacity-75'>
+            <SectionTitle as='span' className='!ps-0 !text-current opacity-75'>
               {remoteDeviceName}
             </SectionTitle>
             <span className='line-clamp-2 text-sm font-medium leading-snug'>