feat(components): add navigation bar component

[desmondinho]

Description

Add the navbar component, along with the brand, toggle, menu, menu item, content and item components, to the component library.

Closes #38

What's been done?

Added the components mentioned above with the following abilities:

Navbar: A component representing a navigation bar

• Set the child content
• Set the height
• Set the maximum width of the wrapper (e.g., sm, md, lg)
• Set the sticky state (sticky to the top of the viewport)
• Set the blurred state (backdrop blur)
• Set the bordered state (bottom border)
• Set CSS class names for each item slot

Navbar brand: A component representing the brand section of the navigation bar

• Set the child content

Navbar content: A component representing the content section of the navigation bar

• Set the child content
• Set the alignment (e.g., left, right)

Navbar item: A component representing a navigation item within the content section

• Set the child content

Navbar menu: A component representing a collapsible menu for the navigation bar

• Set the child content
• Get expanded by the NavbarMenuToggle

Navbar menu item: A component representing a navigation item within the menu

• Set the child content

Navbar menu toggle: A component representing a button that toggles the menu

• Toggle the menu

Navbar context: A class representing the navigation bar context

• Hold the Navbar component
• Hold the NavbarMenu component
• Hold the menu component's expansion state
• Register the menu
• Toggle the menu

Navbar slots: A class representing the various slot configurations for the Navbar

1. Root: the slot for the Navbar, it is the main container.
2. Wrapper: the slot for the Navbar component, it contains components such as NavbarBrand, NavbarContent, NavbarToggle and others.
3. Brand: the slot for the NavbarBrand component.
4. Content: the slot for the NavbarContent component.
5. Item: the slot for the NavbarItem component.
6. Menu: the slot for the NavbarMenu component.
7. MenuItem: the slot for the NavbarMenuItem component.
8. Toggle: the slot for the NavbarMenuToggle component.
9. ToggleIcon: the slot for the NavbarMenuToggle icon.

Checklist

• My code follows the project's coding style and guidelines.
• I have included inline docs for my changes, where applicable.
• I have added, updated or removed tests according to my changes.
• All tests are passing.
• There's an open issue for the PR that I am making.

[codecov]

Codecov Report

Attention: Patch coverage is 98.09524% with 2 lines in your changes missing coverage. Please review.

Project coverage is 98.22%. Comparing base (b539213) to head (b3ee682).
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/LumexUI/Components/Navbar/LumexNavbar.razor.cs	93.75%	0 Missing and 1 partial ⚠️
...LumexUI/Components/Navbar/LumexNavbarMenu.razor.cs	94.44%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #39      +/-   ##
==========================================
- Coverage   98.24%   98.22%   -0.02%     
==========================================
  Files          43       52       +9     
  Lines         968     1067      +99     
  Branches      101      104       +3     
==========================================
+ Hits          951     1048      +97     
  Misses         12       12              
- Partials        5        7       +2     

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