New 'Next episode column' in GTK and for MAL (Qt and GTK) + miscellaneous code refactor

[BigBoyBarney]

I now realise this probably should have been a few different PRs instead of one.

Changelist

Screenshots are at the bottom

GTK

UI

• Implemented 'Next episode' column with custom sorting
• QoL changes to right-click context menu:
  • Play Next → Play next episode
  • Show details... → Show details
  • Open web site → Open on [website], where [website] is the currently used API. Tested with MAL and Anilist.
  • Set alternate title... → Set alternate title
• Sorting indicators no longer take up screen space on unsorted columns
• Centred columns other than 'Title'
• Increased default window size to 1080x720 (from 740x480). The current default was set in 2015, and it is too small for modern displays.
• Renamed some column titles (see screenshots). Default visible columns had to be reset in order to accommodate this change:
  • Progress → Watched
  • Percent → Progress
• Changed default sorting directions for some columns to be more intuitive, defaulting to descending order on the first click. E.g: 10, 10, 8, 4 etc. Changed columns:
  • Watched
  • Score
  • Next episode
  • Progress

Code

• Implemented 'Next episode' column with custom sorting
• New function to reset visible columns in the config, to ensure the default columns are visible even after being renamed. A more elegant solution would be to completely rewrite how visible columns are handled and not reference the column titles directly.
• Rewrote parts of ShowTreeView.py:
  • Row data access and general column referencing is done through a TreeConstants class to improve readability and uniformity
  • TreeView model is now set immediately after initialisation
  • Completely rewrote how sorting is set up

Qt

UI

• Increased default window size to 1080x720 (from 740x480)
• Implemented 'Next episode' column for MAL (Anilist was already supported)

Code

• Replaced deprecated datetime.utcnow() with time zone aware datetime.now(datetime.timezone.utc)
• Implemented 'Next episode' column for MAL. The code to display the datetime object was already written by someone else — most likely Z — and I did not touch that too much, which is why the way Qt displays the time differs from GTK.

Other

• Minimum python version bumped to 3.10, as it introduces a lot of QoL changes. Currently one of the oldest "major" distros, Ubuntu 22.04, ships with Python 3.10 already, so pretty much every other distro should be at least this or newer.
• Updated poetry.lock

Screenshots GTK

Default

Next episode sorting down (Anilist)

Next episode sorting up (Anilist)

MAL Support

Context menu Anilist

Context menu MAL

Screenshots Qt

Anilist

MAL

[BigBoyBarney]

Added MAL support, with all of their information. Kitsu provides no information and Shikimori is dead. 'Next episode' functionality can be considered complete at this point IMO. Updated the OP with Qt images.

The poetry update consists mostly of minor version changes, the only difference being urllib3, but I don't think this is an issue for Trackma, as only barebones urllib functionality is being used.

The other major change is obviously python 3.8 → 3.10, but I think this shouldn't be an issue either.

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Could someone take a look? I promise the code is readable and well commented, so it shouldn't take too long. The GTK version is well tested, but Qt should be stable as well. @z411

[v-fox]

Doesn't apply cleanly to master due to some extraneous changes but easy to clean up by hand. Absolutely essential feature, especially now that Qt5 is obsoleted but PyQt6 port is stalled. But I wish it would show hours too.