Chore : Refactored and relocated Vite environment type declarations.

- Renamed and moved vite.env.d.ts to vite-env.d.ts within the src directory.
- Converted import.meta.env variables to the appropriate types as necessary.

src/battle-scene.ts

@@ -62,7 +62,7 @@ import { Variant, variantData } from './data/variant';
 import { Localizable } from './plugins/i18n';
 import { STARTING_WAVE_OVERRIDE, OPP_SPECIES_OVERRIDE, SEED_OVERRIDE, STARTING_BIOME_OVERRIDE } from './overrides';
 
-export const bypassLogin = import.meta.env.VITE_BYPASS_LOGIN === "1";
+export const bypassLogin = Boolean(import.meta.env.VITE_BYPASS_LOGIN);
 
 const DEBUG_RNG = false;
 
@@ -112,7 +112,7 @@ export default class BattleScene extends SceneBase {
 	public gameSpeed: integer = 1;
 	public damageNumbersMode: integer = 0;
 	public showLevelUpStats: boolean = true;
-	public enableTutorials: boolean = import.meta.env.VITE_BYPASS_TUTORIAL === "1";
+	public enableTutorials: boolean = Boolean(import.meta.env.VITE_BYPASS_TUTORIAL);
 	public enableRetries: boolean = false;
 	public uiTheme: UiTheme = UiTheme.DEFAULT;
 	public windowType: integer = 0;