truths: Change truth creation URL

As we will be able to create a new week, <week>/new to <week>/new_truth to
differentiate it from the week creation URL.

src/truth.rs

@@ -53,7 +53,7 @@ pub async fn edit_truth(week: u8, truth_number: u8, form: Form<TruthUpdateForm>,
     Redirect::to(uri!("/"))
 }
 
-#[post("/<week>/new", data="<form>")]
+#[post("/<week>/new_truth", data="<form>")]
 pub async fn create_truth(week: u8, form: Form<TruthUpdateForm>,
                           mut db: Connection<database::Db>, cookies: &CookieJar<'_>) -> Redirect {
     let user = auth::get_user(week, &mut db, cookies).await;

templates/index.html.tera

@@ -91,7 +91,7 @@
         {% if user.is_admin == true %}
             <div class="individual_truth">
                 <h3>Nouvelle vérité</h3>
-                <form action="/{{ week_data.number }}/new" method="POST">
+                <form action="/{{ week_data.number }}/new_truth" method="POST">
                     {% include "truth_editor" %}
                 </form>
             </div>