✨ feat: add date visibility options to post list (#330)

Co-authored-by: welpo <welpo@users.noreply.github.com>

theme.toml

@@ -103,6 +103,12 @@ show_reading_time = true
 # Can be set at page or section levels, following the hierarchy: page > section > config. See: https://welpo.github.io/tabi/blog/mastering-tabi-settings/#settings-hierarchy
 show_date = true
 
+# Determines how dates are displayed in the post listing (e.g. front page or /blog). Options:
+# "date" - Show only the original date of the post (default if unset).
+# "updated" - Show only the last updated date of the post.
+# "both" - Show both the original date and the last updated date.
+post_listing_date = "date"
+
 # DEPRECATED!
 # Use Zola's built-in `bottom_footnotes = true` in the [markdown] section instead. (Available since v0.19.0)
 # Adds backlinks to footnotes (loads ~500 bytes of JavaScripts).