Add config option for instance donation link

Co-authored-by: Arya K <arya@projectsegfau.lt>

config/config.example.yml

@@ -474,6 +474,16 @@ jobs:
 ##
 # footer_instance_privacy_policy_link:
 
+##
+## Instance donation URL. If your instance has a donation option.
+## you can add it here so it will be present in the footer along
+## with the donation link for the project itself.
+##
+## Accepted values: a string
+## Default: <none>
+##
+#footer_instance_donate_link: ""
+
 ##
 ## Custom fields to be displayed within the footer's instance section
 ##

locales/en-US.json

@@ -482,6 +482,7 @@
     "footer_instance_section_modified_source_code": "Instance Source Code",
     "footer_instance_section_tos": "Terms of Service",
     "footer_instance_section_privacy_policy": "Privacy Policy",
+    "footer_instance_section_donate": "Donate (Instance)",
     "footer_licences_link": "Licences",
     "footer_privacy_policy_link": "Privacy",
     "adminprefs_modified_source_code_url_label": "URL to modified source code repository",

src/invidious/config.cr

@@ -132,6 +132,8 @@ class Config
   property footer_instance_tos_link : String? = nil
   # Link to the privacy policy of the instance (if any). Will be displayed in the footer.
   property footer_instance_privacy_policy_link : String? = nil
+  # Instance donation URL displayed in the "Instance" section of the footer
+  property footer_instance_donate_link : String? = nil
   # Custom fields to be displayed within the footer's instance section
   property footer_instance_section_custom_fields : Array(Array(String)) = [] of Array(String)
 

src/invidious/views/template.ecr

@@ -272,6 +272,14 @@
                                 </li>
                             <% end %>
 
+                            <% if CONFIG.footer_instance_donate_link %>
+                                <li class="pure-menu-item footer-section-item">
+                                    <a href="<%=HTML.escape(CONFIG.footer_instance_donate_link.not_nil!)%>" title="<%= translate(locale, "footer_instance_section_donate")%>">
+                                        <%= translate(locale, "footer_instance_section_donate") %>
+                                    </a>
+                                </li>
+                            <% end %>
+
                             <% CONFIG.footer_instance_section_custom_fields.each do | field | %>
                                 <li class="pure-menu-item footer-section-item">
                                     <a href="<%=HTML.escape(field[1])%>" title="<%= HTML.escape(field[0]) %>">