Add Postgres and MySQL databases support (#335)

templates/pages/admin_config.html

@@ -17,11 +17,11 @@
             <dt>Log output</dt><dd>{{ .c.LogOutput }}</dd>
             <dt>External URL</dt><dd>{{ .c.ExternalUrl }}</dd>
             <dt>Opengist home</dt><dd>{{ .c.OpengistHome }}</dd>
-            <dt>DB filename</dt><dd>{{ .c.DBFilename }}</dd>
+            <dt>Database type</dt><dd>{{ .dbtype }}{{ if eq .dbtype "SQLite" }} ({{ .c.SqliteJournalMode }}){{ end }}</dd>
+            <dt>Database name</dt><dd>{{ .dbname }}</dd>
             <dt>Index Enabled</dt><dd>{{ .c.IndexEnabled }}</dd>
             <dt>Index Dirname</dt><dd>{{ .c.IndexDirname }}</dd>
             <dt>Git default branch</dt><dd>{{ .c.GitDefaultBranch }}</dd>
-            <dt>SQLite Journal Mode</dt><dd>{{ .c.SqliteJournalMode }}</dd>
             <div class="relative col-span-3 mt-4">
                 <div class="absolute inset-0 flex items-center" aria-hidden="true">
                     <div class="w-full border-t border-gray-300"></div>