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>

apps/web/src/components/(dashboard)/layout/mobile-navigation.tsx

@@ -46,7 +46,7 @@ export const MobileNavigation = ({ isMenuOpen, onMenuOpenChange }: MobileNavigat
 
   return (
     <Sheet open={isMenuOpen} onOpenChange={onMenuOpenChange}>
-      <SheetContent className="flex w-full max-w-[400px] flex-col">
+      <SheetContent className="flex w-full max-w-[350px] flex-col">
         <Link href="/" onClick={handleMenuItemClick}>
           <Image
             src={LogoImage}
@@ -87,7 +87,7 @@ export const MobileNavigation = ({ isMenuOpen, onMenuOpenChange }: MobileNavigat
           </div>
 
           <p className="text-muted-foreground text-sm">
-            © {new Date().getFullYear()} Documenso, Inc. All rights reserved.
+            © {new Date().getFullYear()} Documenso, Inc. <br /> All rights reserved.
           </p>
         </div>
       </SheetContent>