refactor: rename game package to connect4, drop Game prefix from types

Rename game/ -> connect4/ to avoid c4/game stutter. Drop redundant
Game prefix from exported types (GameStore -> Store, GameInstance ->
Instance, GameStatus -> Status). Rename NATS subjects from game.{id}
to connect4.{id}. URL routes unchanged.

features/lobby/components/gamelist.templ

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/ryanhamamura/c4/game"
+	"github.com/ryanhamamura/c4/connect4"
 	"github.com/starfederation/datastar-go/datastar"
 )
 
@@ -46,10 +46,10 @@ templ gameListEntry(g GameListItem) {
 }
 
 func statusText(g GameListItem) string {
-	switch game.GameStatus(g.Status) {
-	case game.StatusWaitingForPlayer:
+	switch connect4.Status(g.Status) {
+	case connect4.StatusWaitingForPlayer:
 		return "Waiting for opponent"
-	case game.StatusInProgress:
+	case connect4.StatusInProgress:
 		if g.IsMyTurn {
 			return "Your turn!"
 		}
@@ -59,10 +59,10 @@ func statusText(g GameListItem) string {
 }
 
 func statusClass(g GameListItem) string {
-	switch game.GameStatus(g.Status) {
-	case game.StatusWaitingForPlayer:
+	switch connect4.Status(g.Status) {
+	case connect4.StatusWaitingForPlayer:
 		return "text-sm opacity-60"
-	case game.StatusInProgress:
+	case connect4.StatusInProgress:
 		if g.IsMyTurn {
 			return "text-sm text-success font-bold"
 		}