feat(aniskip): move intro detection from mpv plugin to app runtime (#117)

plugin/subminer/state.lua

@@ -18,17 +18,6 @@ function M.new()
 			clear_timer = nil,
 			last_hover_update_ts = 0,
 		},
-		aniskip = {
-			mal_id = nil,
-			title = nil,
-			episode = nil,
-			intro_start = nil,
-			intro_end = nil,
-			payload = nil,
-			payload_source = nil,
-			found = false,
-			prompt_shown = false,
-		},
 		auto_play_ready_gate_armed = false,
 		auto_play_ready_should_resume_playback = false,
 		auto_play_ready_timeout = nil,