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/c4game/components/board.templ

@@ -3,11 +3,11 @@ package components
 import (
 	"fmt"
 
-	"github.com/ryanhamamura/c4/game"
+	"github.com/ryanhamamura/c4/connect4"
 	"github.com/starfederation/datastar-go/datastar"
 )
 
-templ Board(g *game.Game, myColor int) {
+templ Board(g *connect4.Game, myColor int) {
 	<div id="c4-board" class="board">
 		for col := 0; col < 7; col++ {
 			@column(g, col, myColor)
@@ -15,8 +15,8 @@ templ Board(g *game.Game, myColor int) {
 	</div>
 }
 
-templ column(g *game.Game, colIdx int, myColor int) {
-	if g.Status == game.StatusInProgress && myColor == g.CurrentTurn {
+templ column(g *connect4.Game, colIdx int, myColor int) {
+	if g.Status == connect4.StatusInProgress && myColor == g.CurrentTurn {
 		<div
 			class="column clickable"
 			data-on:click={ datastar.PostSSE("/games/%s/drop?col=%d", g.ID, colIdx) }
@@ -34,14 +34,14 @@ templ column(g *game.Game, colIdx int, myColor int) {
 	}
 }
 
-templ cell(g *game.Game, row int, col int) {
+templ cell(g *connect4.Game, row int, col int) {
 	<div class={ cellClass(g, row, col) }></div>
 }
 
-func cellClass(g *game.Game, row, col int) string {
+func cellClass(g *connect4.Game, row, col int) string {
 	color := g.Board[row][col]
 	activeTurn := 0
-	if g.Status == game.StatusInProgress {
+	if g.Status == connect4.StatusInProgress {
 		activeTurn = g.CurrentTurn
 	}