Custom keybinds, Default language per Library, and bugfixes

[Fesaa]

Added

• Added: Volume and chapter detail pages will now show release years (Closes FR [Kavita] - Add date to book detail like shown with series #4145, 1 upvote)
• Added: Added a library setting to set a default language for series when none is set in metadata (Closes FR [Kavita] Library default language #4085, 1 upvote)
• Added: Added custom keybinds, allowing users to remap, and add up to 5 keybinds per action. (Closes FR [Kavita] Customizable Keyboard Shortcuts #2563, 11 upvotes) (Closes custom keybinds (reading profiles) (FR) #3892)
• Added: Added some new custom keybinds for the site navigation.

Changed

• Changed: External ID tooltips will now show the character link when the person is only a character (Fixes Character Edit URL link description needs to be modified #4153)
• Changed: Changed the files at root warning during library creation to be a lot more obvious
• Changed: Backup files will now use ISO 8601 to denote time. (Closes FR [Kavita] Backup filenames should use ISO 8601 format for timestamp #4012, 2 upvotes)

Fixed

• Fixed: Fixed locations always being locked after changing any role. (Fixes metadata edit lock issue #4133)
• Fixed: Fixed unused person cover images not being removed. (Fixes Running a general clean up will not delete your characters and character images. #4134)
• Fixed: Fixed publication date, not being localized
• Fixed: Fixed chapters by role streams on person page, not sorting volumes correctly. (Fixes The "as a write" section appears randomly. #4154)
• Fixed: Fixed sometimes not being able to upload person cover without resetting first. (Fixes Character images cannot be removed. #4117)
• Fixed: Fixed not being able to remove OIDC configuration once set (Fixes Can not remove/disable OIDC once enabled #4157)
• Fixed: Fixed magic numbers showing up in the publication status tooltip (Fixed When importing Epub metadata through Kavita+, the publication status is displayed as -100000/1. #4160)
• Fixed: Fixed selected language not always showing up in edit modals after opening it (Fixed Language not applied to epub metadata #4159)

[Copilot]

Pull Request Overview

This PR introduces custom keyboard bindings and a default language setting for libraries in Kavita. It enables users to customize keyboard shortcuts for various actions throughout the application and allows library-level default language assignment when chapter metadata lacks language information.

Key changes:

• Added custom keyboard bindings system with UI for configuration
• Implemented default language setting for libraries
• Added gamepad support infrastructure
• Refactored cleanup service execution logic
• Enhanced person cover image handling

Reviewed Changes

Copilot reviewed 71 out of 72 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
UI/Web/src/assets/langs/en.json	Added translation keys for custom key bindings, validation messages, and language settings
UI/Web/src/app/user-settings/custom-key-binds/*	New component for managing custom keyboard shortcuts
UI/Web/src/app/_services/key-bind.service.ts	Core service managing keyboard bindings, validation, and event handling
UI/Web/src/app/_services/game-pad.service.ts	Service for gamepad input handling
API/Entities/Library.cs	Added DefaultLanguage property for libraries
API/Services/Tasks/Scanner/ProcessSeries.cs	Implements default language fallback logic
API/Services/Tasks/CleanupService.cs	Refactored cleanup execution with better organization