**Description:**
- Updated mobile header with respect to latest designs
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Added a new `showText` property to the `MenuSwitcher` component to
control text visibility.
- Added a `textSectionClassName` property to the `AvatarWithText`
component for conditional text section styling.
- Updated the `CommandDialog` and `DialogContent` components with new
positioning and styling properties.
- **Style Updates**
- Adjusted text size responsiveness in the `Hero` component for various
screen sizes.
- Modified text truncation and input styling in the `Widget` component.
- Changed the width of the `SheetContent` element in `MobileNavigation`
and adjusted footer layout.
- **Documentation**
- Added instructions for certificate placement in `SIGNING.md`.
- **Refactor**
- Standardized type imports across various components and utilities for
improved type checking.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Signed-off-by: Adithya Krishna <adithya@documenso.com>
Signed-off-by: Adithya Krishna <aadithya794@gmail.com>
Co-authored-by: David Nguyen <davidngu28@gmail.com>
