[Bug] Navigating to next chapter that has fewer pages can throw errors

[Manchewable]

Device information

• Tachidesk version: latest preview (v0.3.9-r600)
• Server Operating System: Windows 10
• Server Desktop Environment: N/A
• Server JVM version: Java 11
• Client Operating System: Windows 10
• Client Web Browser: Google Chrome latest

Steps to reproduce

1. Click into a manga chapter that has more pages than its next chapter.
2. Go to a page number that exceeds the number of pages of the next chapter,
3. Navigate to the next chapter from sidebar or end of page.

Expected behavior

Navigate to the next chapter with no issues.

Actual behavior

Throws a server error:

TypeError: Cannot read property 'src' of undefined
PagedReader

Tachidesk/webUI/react/src/components/reader/pager/PagedPager.tsx:84
    81 | <Page
    82 |     key={curPage}
    83 |     index={curPage}
>   84 |     src={pages[curPage].src}
    85 | ^   setCurPage={setCurPage}
    86 |     settings={settings}
    87 | />