Adds scroll styling, where possible. Fixes numberinput button on Chrome.

src/admin/scss/_tainacan-form.scss

@@ -70,7 +70,7 @@
             border: 1px solid $gray2;
             background-color: $gray1 !important;
             color: $secondary !important;
-            padding: 0.75rem !important;
+            padding: 0 0.6rem !important;
             border-radius: 0 !important;
 
             .mdi::before {

src/admin/scss/tainacan-admin.scss

@@ -31,12 +31,12 @@
 @import "../scss/_iframe_read_mode_overrides.scss";
 
 // Clears wordpress content
-body.tainacan-admin-page #adminmenumain, body.tainacan-admin-page #wpfooter, body.tainacan-admin-page #wp-auth-check-wrap {
-    display: none;
-}
 html {
     overflow-y: hidden;
 }
+body.tainacan-admin-page #adminmenumain, body.tainacan-admin-page #wpfooter, body.tainacan-admin-page #wp-auth-check-wrap {
+    display: none;
+}
 #tainacan-admin-app {
     background: #ffffff;
     position: fixed;
@@ -51,6 +51,21 @@ html {
     font-family: $family-sans-serif;
 }
 
+// Scrollbars
+#tainacan-admin-app * {
+    // For Firefox
+    scrollbar-color: $gray3 transparent;
+    scrollbar-width: thin;
+
+    // For Chromium and related
+    &::-webkit-scrollbar {
+        width: 0.4rem;
+    }
+    &::-webkit-scrollbar-thumb {
+        background-color: $gray3;
+    }
+}
+
 // Tainacan Loading
 .tainacan-icon {
     opacity: 0; // Will make it 1 once window.load is done;