Refactored and improved seeds (#8695)

- Added a new Seeder service to help with custom object seeds
- Added RichTextFieldInput to edit a rich text field directly on the
table, but deactivated it for now.

packages/twenty-front/src/modules/settings/components/SettingsOptions/SettingsOptionIconCustomizer.tsx

@@ -25,7 +25,7 @@ export const SettingsOptionIconCustomizer = ({
     <StyledIconCustomizer zoom={zoom} rotate={rotate}>
       <Icon
         size={theme.icon.size.lg}
-        color={theme.IllustrationIcon.color.grey}
+        color={theme.IllustrationIcon.color.gray}
         stroke={theme.icon.stroke.md}
       />
     </StyledIconCustomizer>