MDL-71293 theme_boost: improve navbar for new navigation

lib/outputrenderers.php

@@ -3330,7 +3330,7 @@ EOD;
             return html_writer::div(
                 html_writer::span(
                     $returnstr,
-                    'login'
+                    'login nav-link'
                 ),
                 $usermenuclasses
             );
@@ -3347,7 +3347,7 @@ EOD;
             return html_writer::div(
                 html_writer::span(
                     $returnstr,
-                    'login'
+                    'login nav-link'
                 ),
                 $usermenuclasses
             );
@@ -3419,7 +3419,8 @@ EOD;
 
         $am = new action_menu();
         $am->set_menu_trigger(
-            $returnstr
+            $returnstr,
+            'nav-link'
         );
         $am->set_action_label(get_string('usermenu'));
         $am->set_alignment(action_menu::TR, action_menu::BR);

lib/templates/action_menu.mustache

@@ -30,7 +30,7 @@
         }
     }
 }}
-<div class="action-menu {{classes}} d-inline"{{#attributes}} {{name}}="{{value}}"{{/attributes}}>
+<div class="action-menu {{classes}}"{{#attributes}} {{name}}="{{value}}"{{/attributes}}>
     {{#primary}}
 
         <div class="{{classes}} d-flex "{{#attributes}} {{name}}="{{value}}"{{/attributes}}>

lib/templates/action_menu_trigger.mustache

@@ -78,7 +78,7 @@
     }
 }}
 <div class="dropdown{{^secondary.items}} hidden{{/secondary.items}}">
-    <a href="#" tabindex="0" class="d-inline-block {{triggerextraclasses}} dropdown-toggle icon-no-margin" id="action-menu-toggle-{{instance}}" aria-label="{{title}}" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" aria-controls="action-menu-{{instance}}-menu">
+    <a href="#" tabindex="0" class="{{triggerextraclasses}} dropdown-toggle icon-no-margin" id="action-menu-toggle-{{instance}}" aria-label="{{title}}" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" aria-controls="action-menu-{{instance}}-menu">
         {{{actiontext}}}
         {{{menutrigger}}}
             {{#icon}}

lib/templates/custom_menu_item.mustache

@@ -50,7 +50,7 @@
 {{/haschildren}}
 {{^haschildren}}
 <li class="nav-item">
-    <a class="nav-item nav-link" href="{{{url}}}" {{#title}}title="{{{title}}}"{{/title}}>{{{text}}}</a>
+    <a class="nav-link" href="{{{url}}}" {{#title}}title="{{{title}}}"{{/title}}>{{{text}}}</a>
 </li>
 {{/haschildren}}
 {{/divider}}

lib/templates/search_input_navbar.mustache

@@ -70,7 +70,7 @@
         </form>
     </div>
     <a
-        class="btn btn-open"
+        class="btn btn-open nav-link"
         data-toggle="collapse"
         data-action="opensearch"
         href="#searchform-navbar"