feat: updated mobile header (#1004)

**Description:**

- Updated mobile header with respect to latest designs 

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## 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 -->

---------

Signed-off-by: Adithya Krishna <adithya@documenso.com>
Signed-off-by: Adithya Krishna <aadithya794@gmail.com>
Co-authored-by: David Nguyen <davidngu28@gmail.com>

packages/ui/primitives/command.tsx

@@ -32,7 +32,11 @@ type CommandDialogProps = DialogProps & {
 const CommandDialog = ({ children, commandProps, ...props }: CommandDialogProps) => {
   return (
     <Dialog {...props}>
-      <DialogContent className="overflow-hidden p-0 shadow-2xl">
+      <DialogContent
+        className="w-11/12 items-center overflow-hidden rounded-lg p-0 shadow-2xl lg:mt-0"
+        position="center"
+        overlayClassName="bg-background/60"
+      >
         <Command
           {...commandProps}
           className="[&_[cmdk-group-heading]]:text-muted-foreground [&_[cmdk-group-heading]]:px-0 [&_[cmdk-group-heading]]:font-medium [&_[cmdk-group]:not([hidden])_~[cmdk-group]]:pt-0 [&_[cmdk-group]]:px-2 [&_[cmdk-input-wrapper]_svg]:h-5 [&_[cmdk-input-wrapper]_svg]:w-5 [&_[cmdk-input]]:h-12 [&_[cmdk-item]]:px-2 [&_[cmdk-item]]:py-3 [&_[cmdk-item]_svg]:h-4 [&_[cmdk-item]_svg]:w-4"