fix(S21/T01): fix all lint warnings and upgrade wsl to wsl_v5

Files:
- .golangci.yml
- backend/events/cmd/genevents/main.go
- backend/fileutil/atomicwrite_test.go
- backend/library/library.go
- backend/player/buffered_streamer_test.go
- backend/player/player.go
- backend/tagwriter/dbsync.go
- backend/tagwriter/mp3_test.go
- backend/tagwriter/ogg.go
- backend/tagwriter/ogg_test.go
- backend/tagwriter/ogg_vorbis.go
- backend/tagwriter/pipeline.go
- backend/tagwriter/tagwriter.go
- backend/tagwriter/wav_test.go

backend/player/buffered_streamer_test.go

@@ -54,6 +54,7 @@ func finiteStreamer(n int) beep.Streamer {
 
 func TestBufferedStreamer_BasicStream(t *testing.T) {
 	const total = 1000
+
 	src := finiteStreamer(total)
 	bs := NewBufferedStreamer(src, 2048)
 
@@ -120,6 +121,7 @@ func TestBufferedStreamer_BasicStream(t *testing.T) {
 
 func TestBufferedStreamer_SmallReads(t *testing.T) {
 	const total = 200
+
 	src := finiteStreamer(total)
 	bs := NewBufferedStreamer(src, 512)
 
@@ -185,6 +187,7 @@ func TestBufferedStreamer_SmallReads(t *testing.T) {
 
 func TestBufferedStreamer_SourceDrained(t *testing.T) {
 	const total = 100
+
 	src := finiteStreamer(total)
 	bs := NewBufferedStreamer(src, 256)
 

backend/player/player.go

@@ -802,7 +802,6 @@ func (p *Player) seekLocked(targetSeconds int) error {
 
 		return p.seeker.Seek(samples)
 	}()
-
 	if seekErr != nil {
 		speaker.Unlock()