Add Handy / Funscript support (#1377)

* Add funscript route to scenes

Adds a /scene/:id/funscript route which serves a funscript file, if present.

Current convention is that these are files stored with the same path, but with the extension ".funscript".

* Look for funscript during scan

This is stored in the Scene record and used to drive UI changes for funscript support.

Currently, that's limited to a funscript link in the Scene's file info.

* Add filtering and sorting for interactive
* Add Handy connection key to interface config
* Add Handy client and placeholder component.

Uses defucilis/thehandy, but not thehandy-react as I had difficulty integrating the context with the existing components.

Instead, the expensive calculation for the server time offset is put in localStorage for reuse.

A debounce was added when scrubbing the video, as otherwise it spammed the Handy API with updates to the current offset.

pkg/models/model_scene.go

@@ -32,6 +32,7 @@ type Scene struct {
 	Phash       sql.NullInt64       `db:"phash,omitempty" json:"phash"`
 	CreatedAt   SQLiteTimestamp     `db:"created_at" json:"created_at"`
 	UpdatedAt   SQLiteTimestamp     `db:"updated_at" json:"updated_at"`
+	Interactive bool                `db:"interactive" json:"interactive"`
 }
 
 // ScenePartial represents part of a Scene object. It is used to update
@@ -62,6 +63,7 @@ type ScenePartial struct {
 	Phash       *sql.NullInt64       `db:"phash,omitempty" json:"phash"`
 	CreatedAt   *SQLiteTimestamp     `db:"created_at" json:"created_at"`
 	UpdatedAt   *SQLiteTimestamp     `db:"updated_at" json:"updated_at"`
+	Interactive *bool                `db:"interactive" json:"interactive"`
 }
 
 // GetTitle returns the title of the scene. If the Title field is empty,