improved margin for account icon in navbar for admin

[flashpunch0-0]

PR Checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
  -no test required just added a line in AdminUser.scss
  "margin-right: 5px;

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• [x ] Other... Please describe: The account icon in admin navbar would overlap with the scrollbar . So, I added a margin right to it .

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information