This update polishes the chatter area used for messages and activities, improving spacing, borders, and button sizing. The changes make the interface cleaner and more consistent, especially for users working in different languages.

This commits makes some improvement on the chatter visuals

-Spacing/styling of various elements
-Missing borders around chatter
-Fix button size in other languages

Shared projects in the customer portal no longer fail to open when timesheets are installed. The change ensures the needed timesheet unit service is available in the shared project view, preventing an error for portal users.

Steps:
- install hr_timehseet module
- Share any project
- Go to the portal and open the project.

Issue:
currently,timesheet_uom service is not added in project webclient so
service not found.

Fix:
In this commit, we have added timesheet_uom services in project webclient.

This fixes an issue where a default project could still allow timesheet grid edits even when timesheets were disabled for that project. The change helps keep project settings enforced consistently and avoids users entering time on projects that should not track timesheets.

## Description
Quick follow up on #38160
Default projects can be set in the settings to a project that has their Timesheet option disabled.

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opw-3203241