chore: Update Colors (#4541)

## Description

Used lighter, colder background colors

## Steps for reproduction

1. click button
2. expect xyz

## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
0000)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file

packages/design-system/src/components/panel-tabs.tsx

@@ -15,15 +15,14 @@ export const PanelTabs = styled(Primitive.Root, {
 
 export const PanelTabsList = styled(Primitive.List, {
   display: "flex",
-  px: theme.spacing[5],
-  py: theme.spacing[3],
+  padding: theme.spacing[5],
 });
 
 export const PanelTabsTrigger = styled(Primitive.Trigger, {
   all: "unset", // reset <button>
   ...textVariants.titles,
   color: theme.colors.foregroundTextMoreSubtle,
-  padding: theme.spacing[5],
+  padding: theme.spacing[3],
   borderRadius: theme.borderRadius[4],
 
   "&:hover": {