dx: design improvements

[Nishchit14]

Dx fixes

• FcAgentSelector: Remove box-shadow, check click action, update extension agent location to the bottom
• Table: Description field outline visible
• Rest request section: Update table heading to a lighter color compared to values
• In InviteOrgMember popup, the member selection dropdown disabled the text wrapping of the member name
• SingleLineEditor classname added for input field selection (issue found in Safari browser)
• Added new root variable text-heading-color for Rest request section [Update table heading to a lighter color compared to values]
• Storybook samples created using mantine layout components [added ContainerProps, FlexLayout, GridLayout, GridLayoutDoc]
• FirecampThemeProvider updated to initialize the colorSchema value using localstorage
• FirecampAgentSelection - Remove the shadow by updating the shadow variable values
• In Pane component, added a new prop hideBorder to disable the preview of border-bottom
  Increased sidebar width by 15px

[netlify]

✅ Deploy Preview for staging-firecamp-dev ready!

Name	Link
🔨 Latest commit	bd04f1f
🔍 Latest deploy log	https://app.netlify.com/sites/staging-firecamp-dev/deploys/64fef7671a85a300086650ec
😎 Deploy Preview	https://deploy-preview-64--staging-firecamp-dev.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.