fix: vite docs lied to me

.env

@@ -0,0 +1 @@
+VITE_GIT_SHA=$GIT_SHA

package.json

@@ -9,8 +9,8 @@
   "homepage": "https://oldstarchy.github.io/pandemic_tracker/",
   "type": "module",
   "scripts": {
-    "dev": "vite",
-    "build": "VITE_GIT_SHA=`git rev-parse --short HEAD` tsc -b && vite build && yarn sentry:sourcemaps",
+    "dev": "export GIT_SHA=\"Dev Mode\" && vite",
+    "build": "export GIT_SHA=$(git rev-parse --short HEAD) && echo $GIT_SHA && tsc -b && vite build && yarn sentry:sourcemaps",
     "lint": "eslint . --report-unused-disable-directives --max-warnings 0",
     "preview": "vite preview",
     "sentry:sourcemaps": "sentry-cli sourcemaps inject --org nicholas-sorokin --project pandemic-tracker ./dist && sentry-cli sourcemaps upload --org nicholas-sorokin --project pandemic-tracker ./dist"

src/components/layout/MainLayout.tsx

@@ -175,7 +175,7 @@ export function MainLayout({ children }: { children: ReactNode }) {
 				<Link href={newIssueLink.toString()} target="_BLANK">
 					Report an issue or suggest a feature
 				</Link>
-				{import.meta.env.DEV && <Span>Dev Mode</Span>}
+				<Span>{import.meta.env.VITE_GIT_SHA ?? 'Dev Mode'}</Span>
 			</footer>
 		</div>
 	);