[Fix] Login via email, prevent Usernames with certain chars

templates/static/login.html

@@ -82,13 +82,13 @@
 
       <div class="form-control">
         <label class="label" for="username">
-          <span class="label-text">Username</span>
+          <span class="label-text">Account</span>
         </label>
         <input
           type="text"
           id="username"
           name="username"
-          placeholder="username"
+          placeholder="Username or Email"
           class="input input-bordered w-full"
           required
           autocomplete="username"
@@ -164,6 +164,8 @@
           name="username"
           placeholder="username"
           class="input input-bordered w-full"
+          pattern="^[A-Za-z0-9@.+_\-]{3,150}$"
+          title="Only letters, numbers, and @ . + - _ are allowed"
           required
           autocomplete="username"
         />