fix: remove blue border in firefox

src/Index.res

@@ -1,4 +1,5 @@
 %%raw(`require("tailwindcss/tailwind.css")`)
+%%raw("import './index.css'")
 
 Sentry.initiateSentry(~dsn=GlobalVars.sentryDSN)
 

src/index.css

@@ -1,16 +1,9 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
-body {
-  margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
-    sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-code {
-  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
-    monospace;
+/* Remove focus outline in Firefox */
+@-moz-document url-prefix() {
+  *:focus,
+  *:focus-visible,
+  *:focus-within,
+  *:active {
+    outline: transparent !important;
+  }
 }