WIP Add admin settings pages, reserved username config

Prototyping settings forms

app/views/admin/settings/registrations/index.html.erb

@@ -0,0 +1,31 @@
+<%= render HeaderComponent.new(title: "Settings") %>
+
+<%= render MainWithSidenavComponent.new(sidenav_partial: 'shared/admin_sidenav_settings') do %>
+  <section>
+    <h3>Registrations</h3>
+    <%= form_for(Setting.new, url: admin_settings_services_path) do |f| %>
+      <% if @errors && @errors.any? %>
+        <div>
+          <ul>
+            <% @errors.full_messages.each do |msg| %>
+              <li><%= msg %></li>
+            <% end %>
+          </ul>
+        </div>
+      <% end %>
+
+      <label>
+        <p class="font-bold mb-1">Reserved usernames</p>
+        <p class="text-gray-500">
+          These usernames cannot be registered as accounts:
+        </p>
+        <%= f.text_area :reserved_usernames,
+          value: Setting.reserved_usernames.join("\n"),
+          class: "h-44 mb-2" %>
+        <p class="text-sm text-gray-500">
+          One username per line
+        </p>
+      </label>
+    <% end %>
+  </section>
+<% end %>

app/views/admin/settings/services/index.html.erb

@@ -0,0 +1,39 @@
+<%= render HeaderComponent.new(title: "Settings") %>
+
+<%= render MainWithSidenavComponent.new(sidenav_partial: 'shared/admin_sidenav_settings') do %>
+  <section>
+    <h3>Lightning Network</h3>
+    <%= form_for(Setting.new, url: admin_settings_services_path) do |f| %>
+      <% if @errors && @errors.any? %>
+        <div>
+          <ul>
+            <% @errors.full_messages.each do |msg| %>
+              <li><%= msg %></li>
+            <% end %>
+          </ul>
+        </div>
+      <% end %>
+
+      <ul role="list" class="mt-2 divide-y divide-gray-200">
+        <li class="flex items-center justify-between py-6">
+          <div class="flex flex-col">
+            <label class="font-bold mb-1">Enable LNDHub integration</label>
+            <p class="text-gray-500 mb-0">LNDHub configuration present and wallet features enabled</p>
+          </div>
+          <%= f.check_box :lndhub_enabled, checked: Setting.lndhub_enabled?,
+                          disabled: true,
+                          class: "relative ml-4 inline-flex flex-shrink-0" %>
+        </li>
+        <li class="flex items-center justify-between py-6">
+          <div class="flex flex-col">
+            <label class="font-bold mb-1">Enable LNDHub admin panel</label>
+            <p class="text-gray-500 mb-0">LNDHub database configuration present and admin panel enabled</p>
+          </div>
+          <%= f.check_box :lndhub_admin_enabled, checked: Setting.lndhub_admin_enabled?,
+                          disabled: true,
+                          class: "relative ml-4 inline-flex flex-shrink-0" %>
+        </li>
+      </ul>
+    <% end %>
+  </section>
+<% end %>

app/views/icons/_grid.html.erb

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-grid"><rect x="3" y="3" width="7" height="7"></rect><rect x="14" y="3" width="7" height="7"></rect><rect x="14" y="14" width="7" height="7"></rect><rect x="3" y="14" width="7" height="7"></rect></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-grid <%= custom_class %>"><rect x="3" y="3" width="7" height="7"></rect><rect x="14" y="3" width="7" height="7"></rect><rect x="14" y="14" width="7" height="7"></rect><rect x="3" y="14" width="7" height="7"></rect></svg>

app/views/shared/_admin_nav.html.erb

@@ -10,3 +10,5 @@
   <%= link_to "Lightning", admin_lightning_path,
         class: main_nav_class(@current_section, :lightning) %>
 <% end %>
+<%= link_to "Settings", admin_settings_registrations_path,
+      class: main_nav_class(@current_section, :settings) %>

app/views/shared/_admin_sidenav_settings.html.erb

@@ -0,0 +1,11 @@
+<%= render SidenavLinkComponent.new(
+  name: "Registrations", path: admin_settings_registrations_path, icon: "user",
+  active: current_page?(admin_settings_registrations_path)
+) %>
+<%= render SidenavLinkComponent.new(
+  name: "Services", path: admin_settings_services_path, icon: "grid",
+  active: current_page?(admin_settings_services_path)
+) %>
+<%= render SidenavLinkComponent.new(
+  name: "Security", path: "#", icon: "shield", disabled: true
+) %>