Effy update switch UI

[effyyzhang]

• update project name, side panel header font size
• update header change size on scroll issue
• update code editor padding
• update code/preview switch style

[nichochar]

Ideally screenshots in the description for UI changes please!

[effyyzhang]

• Update the font weight
• updated the project header, side panel header font-size, weight
• updated the code/preview switch style
• update the header resize move on scroll issue
• update the code editor padding