fix: cleanup templates for home, login pages

if context has 'image_url' then use that, otherwise configured logo

src/wuttaweb/templates/auth/login.mako

@@ -4,13 +4,9 @@
 
 <%def name="title()">Login</%def>
 
-<%def name="render_this_page()">
-  ${self.page_content()}
-</%def>
-
 <%def name="page_content()">
   <div style="height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem;">
-    <div>${base_meta.full_logo()}</div>
+    <div>${base_meta.full_logo(image_url or None)}</div>
     <div class="card">
       <div class="card-content">
         ${form.render_vue_tag()}
@@ -44,6 +40,3 @@
 
   </script>
 </%def>
-
-
-${parent.body()}

src/wuttaweb/templates/base_meta.mako

@@ -12,8 +12,8 @@
   ${h.image(config.get('wuttaweb.header_logo_url', default=request.static_url('wuttaweb:static/img/favicon.ico')), "Header Logo", style="height: 49px;")}
 </%def>
 
-<%def name="full_logo()">
-  ${h.image(config.get('wuttaweb.logo_url', default=request.static_url('wuttaweb:static/img/logo.png')), f"{app.get_title()} logo")}
+<%def name="full_logo(image_url=None)">
+  ${h.image(image_url or config.get('wuttaweb.logo_url', default=request.static_url('wuttaweb:static/img/logo.png')), f"{app.get_title()} logo")}
 </%def>
 
 <%def name="footer()">

src/wuttaweb/templates/home.mako

@@ -4,16 +4,9 @@
 
 <%def name="title()">Home</%def>
 
-<%def name="render_this_page()">
-  ${self.page_content()}
-</%def>
-
 <%def name="page_content()">
   <div style="height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem;">
-    <div>${base_meta.full_logo()}</div>
+    <div>${base_meta.full_logo(image_url or None)}</div>
     <h1 class="is-size-1">Welcome to ${app.get_title()}</h1>
   </div>
 </%def>
-
-
-${parent.body()}