Changes in the header section for history

[Cellulose-Type-C]

What is it?

• [ √] Feature (user facing)

Description of the changes in your PR

Added a new DATE_HEADER variant to LocalItemType and introduced a DateHeaderItem model carrying a LocalDate for section grouping in history lists.

Added a dedicated date header row layout (list_date_header_item.xml) with emphasized text and container background styling for visual separation between date groups.

Updated LocalItemListAdapter to support a new date-header view type: type mapping, holder creation/binding, and full-span behavior in grid mode so headers render as separators across the whole row.

Changed history result processing in StatisticsPlaylistFragment to return List, inject DateHeaderItem boundaries only for LAST_PLAYED, keep MOST_PLAYED flat, and pass the mixed list directly into the adapter.

Adjusted queue-start index calculation to count only stream items so interleaved date headers do not shift the playback starting position.

Removed per-item date text from statistic stream detail lines; details now show watch count + service only, with date represented by section headers above.

Before/After Screenshots/Screen Record

• Before:

• After:

Fixes the following issue(s)

• Fixes #

Relies on the following changes

APK testing

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Due diligence

• [√ ] I read the contribution guidelines.
• [√ ] The proposed changes follow the AI policy.
• [√ ] I tested the changes using an emulator or a physical device.

[Cellulose-Type-C]

Please note this personal project. I was kinda frustrated by tiny date inline for Newpipe so I changed the codebase so it can show a big banner under which all videos are shown for the same date.
To make this work, the codebase needed a new item kind. LocalItemType got a DATE_HEADER variant, and DateHeaderItem is the model that carries a LocalDate value representing which date that section belongs to.
The adapter (LocalItemListAdapter) was extended to handle this second type: it maps DATE_HEADER to a new view holder, inflates list_date_header_item.xml for it, and binds the date string. Also, the fragment (StatisticsPlaylistFragment) is where the actual logc is. When the sort mode is LAST_PLAYED, it processes the raw stream list and injects DateHeaderItem entries at the boundaries between different dates. MOST_PLAYED is left.
I hope I did not break anything though I build it 2 times and tested on my own device.