Fix pre-1970 upload date display in chapter list (#2779)

A user in #2777 was using the ComicInfo.xml Year/Month/Day fields to
indicate date of publication for some American comics, which often
predate the UNIX Epoch of 1970.

They were seeing "N/A" displays because this line of code discarded
date information for any time before Jan 1st, 1970.

The `toRelativeString` extension function used in the other
`relativeDateText` function already accounts for very distant dates
(anything >7 days away turns into full date, not relative, regardless
of setting, though disabling the relative timestamp setting
circumvents this with the same result). Removing this line should not
cause any issues as it is purely a display difference and the use case
of backdating comics to pre-1970 is worth it in my opinion.

CHANGELOG.md

@@ -22,6 +22,7 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 - Fix shizuku installer not updating installed extensions ([@NGB-Was-Taken](https://github.com/NGB-Was-Taken)) ([#2697](https://github.com/mihonapp/mihon/pull/2697))
 - Fix mass migration not using the same search queries as individual migration ([@AntsyLich](https://github.com/AntsyLich)) ([#2736](https://github.com/mihonapp/mihon/pull/2736))
 - Fix reader not saving read duration when changing chapter ([@AntsyLich](https://github.com/AntsyLich), [@KotlinHero](https://github.com/KotlinHero)) ([#2784](https://github.com/mihonapp/mihon/pull/2784))
+- Fix pre-1970 upload date display in chapter list ([@MajorTanya](https://github.com/MajorTanya)) ([#2779](https://github.com/mihonapp/mihon/pull/2779))
 
 ## [v0.19.3] - 2025-11-07
 ### Improved

app/src/main/java/eu/kanade/presentation/components/DateText.kt

@@ -22,7 +22,7 @@ fun relativeDateText(
             Instant.ofEpochMilli(dateEpochMillis),
             ZoneId.systemDefault(),
         )
-            .takeIf { dateEpochMillis > 0L },
+            .takeIf { dateEpochMillis != 0L },
     )
 }