update studio-mode icon to single path

[github-haoyang]

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots:

Before (If applicable):

After:

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation update
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Other... Please describe:

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (74400fd) 94.18% compared to head (5389ad3) 94.16%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1498 +/- ## ========================================== - Coverage 94.18% 94.16% -0.03% ========================================== Files 134 134 Lines 18974 18974 Branches 2904 2902 -2 ========================================== - Hits 17871 17866 -5 - Misses 1103 1108 +5 ``` [see 3 files with indirect coverage changes](https://app.codecov.io/gh/momentum-design/momentum-ui/pull/1498/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=momentum-design)

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