app: add logos and legal links

src/ulo-storage-applications/src/main/resources/spark/template/freemarker/base.flt

@@ -29,9 +29,25 @@
                 footer {
                     border-top: solid 1px;
                     color: grey;
+                    display: flex;
                     margin-top: 1em;
                     padding: 1em;
+                }
+
+                div.left_footer {
+                    float: left;
+                    text-align: left;
+                    width: 30%;
+                }
+
+                div.right_footer {
+                    float: right;
                     text-align: right;
+                    width: 70%;
+                }
+
+                img.logo {
+                    padding-right: 1em;
                 }
 
                 code {
@@ -72,6 +88,17 @@
                 <@page_main/>
             </main>
             <footer>
+                <div class="left_footer">
+                    <a href="https://kwarc.info">
+                        <img class="logo" src="https://mathhub.info/static/logos/kwarc_logo.png">
+                    </a>
+
+                    <a href="https://www.fau.de">
+                        <img class="logo" src="https://mathhub.info/static/logos/fau_logo.png">
+                    </a>
+                </div>
+
+                <div class="right_footer">
                     <#if global_hostname??>
                         Application Host <code>${global_hostname}</code> |
                     </#if>
@@ -87,6 +114,19 @@
                     <a href="https://gl.kwarc.info/supervision/schaertl_andreas/-/tree/master/src/ulo-storage-applications">
                         Source Code
                     </a>
+
+                    |
+
+                    <a href="https://privacy.kwarc.info/">
+                        Privacy Policy
+                    </a>
+
+                    |
+
+                    <a href="https://mathhub.info/legal/imprint">
+                        Imprint
+                    </a>
+                </div>
             </footer>
         </body>
     </html>