Update mobile clone button

app/views/shared/_mobile_clone_panel.html.haml

@@ -3,8 +3,8 @@
 - http_copy_label = _('Copy %{http_label} clone URL') % { http_label: gitlab_config.protocol.upcase }
 
 .btn-group.mobile-git-clone.js-mobile-git-clone.btn-block
-  = clipboard_button(button_text: default_clone_label, text: default_url_to_repo(project), hide_button_icon: true, class: "gl-button btn btn-confirm flex-fill input-group-text clone-dropdown-btn js-clone-dropdown-label")
-  %button.gl-button.btn.btn-confirm.btn-icon.dropdown-toggle.js-dropdown-toggle.flex-grow-0.d-flex-center.w-auto.ml-0{ type: "button", data: { toggle: "dropdown" } }
+  = clipboard_button(button_text: default_clone_label, text: default_url_to_repo(project), hide_button_icon: true, class: "gl-button btn-confirm flex-fill bold justify-content-center input-group-text clone-dropdown-btn js-clone-dropdown-label")
+  %button.btn.gl-button.btn-confirm.dropdown-toggle.js-dropdown-toggle.flex-grow-0.d-flex-center.w-auto.ml-0{ type: "button", data: { toggle: "dropdown" } }
     = sprite_icon("chevron-down", css_class: "dropdown-btn-icon icon")
   %ul.dropdown-menu.dropdown-menu-selectable.dropdown-menu-right.clone-options-dropdown{ data: { dropdown: true } }
     - if ssh_enabled?