Enhancement: Improve the accessibility of the site header#3130

awtj8o81ryywg793 wants to merge 15 commits intomatrix-org:mainmatrix-org/matrix.org:mainfrom

awtj8o81ryywg793:enhancement/improve-accessibility-of-navigation-toggleawtj8o81ryywg793/matrix.org:enhancement/improve-accessibility-of-navigation-toggleCopy head branch name to clipboard