Fixed a few missing translation strings

templates/login.phtml

@@ -19,9 +19,9 @@
 <h2><?php $t('login.description'); ?></h2>
 
 <form method="post" action="login.php?action=login">
-    <input name="username" type="text" placeholder="Username">
-    <input name="password" type="password" placeholder="Password">
-    <input type="submit" value="Login">
+    <input name="username" type="text" placeholder="<?php $t('login.username'); ?>">
+    <input name="password" type="password" placeholder="<?php $t('login.password'); ?>">
+    <input type="submit" value="<?php $t('login.submit'); ?>">
 </form>
 
 </body>

translations/de.json

@@ -11,7 +11,10 @@
     "error_unavailable": "No search history available"
   },
   "login": {
-    "description": "You have to login to access this page"
+    "description": "You have to login to access this page",
+    "username": "Benutzername",
+    "password": "Passwort",
+    "submit": "Anmelden"
   },
   "search": "Suchen",
   "logout": "Abmelden",

translations/en.json

@@ -11,7 +11,10 @@
     "error_unavailable": "No search history available"
   },
   "login": {
-    "description": "You have to login to access this page"
+    "description": "You have to login to access this page",
+    "username": "Username",
+    "password": "Password",
+    "submit": "Login"
   },
   "search": "Search",
   "logout": "Logout",