Add dark-mode support (#24)

* add dark-mode support

* make improvements as suggested by riggraz

* fix some dark theme styles

Co-authored-by: Riccardo Graziosi <riccardo.graziosi97@gmail.com>

app/views/devise/confirmations/new.html.erb

@@ -9,7 +9,7 @@
   </div>
 
   <div class="actions">
-    <%= f.submit "Resend confirmation instructions", class: "btn btn-dark btn-block" %>
+    <%= f.submit "Resend confirmation instructions", class: "btn btn-block" %>
   </div>
 <% end %>
 

app/views/devise/passwords/new.html.erb

@@ -9,7 +9,7 @@
   </div>
 
   <div class="actions">
-    <%= f.submit "Send me reset password instructions", class: "btn btn-dark btn-block" %>
+    <%= f.submit "Send me reset password instructions", class: "btn btn-block" %>
   </div>
 <% end %>
 

app/views/devise/registrations/edit.html.erb

@@ -47,7 +47,7 @@
   </div>
 
   <div class="actions">
-    <%= f.submit "Update profile", class: "btn btn-dark btn-block" %>
+    <%= f.submit "Update profile", class: "btn btn-block" %>
   </div>
 <% end %>
 

app/views/devise/registrations/new.html.erb

@@ -24,7 +24,7 @@
   </div>
 
   <div class="actions">
-    <%= f.submit "Sign up", class: "btn btn-dark btn-block" %>
+    <%= f.submit "Sign up", class: "btn btn-block" %>
   </div>
 <% end %>
 

app/views/devise/sessions/new.html.erb

@@ -19,7 +19,7 @@
   <% end %>
 
   <div class="actions">
-    <%= f.submit "Log in", class: "btn btn-dark btn-block" %>
+    <%= f.submit "Log in", class: "btn btn-block" %>
   </div>
 <% end %>
 

app/views/layouts/_header.html.erb

@@ -1,4 +1,4 @@
-<nav class="navbar navbar-expand-md navbar-light">
+<nav class="navbar navbar-expand-md">
   <div class="container">
     <%=
       link_to root_path, class: 'navbar-brand' do