feat: update rental document templates to remove doctype declaration

feat: add model for lease endings as dated facts with immutable records

backend/src/main/resources/templates/rental/information-notice.html

@@ -1,4 +1,3 @@
-<!doctype html>
 <html lang="fr" xmlns:th="http://www.thymeleaf.org">
   <head>
     <meta charset="UTF-8" />

backend/src/main/resources/templates/rental/lease.html

@@ -1,4 +1,3 @@
-<!doctype html>
 <html lang="fr" xmlns:th="http://www.thymeleaf.org">
   <head>
     <meta charset="UTF-8" />
@@ -177,11 +176,8 @@
         </tr>
         <tr th:if="${profile.habitableSurface != null}">
           <th>Surface habitable :</th>
-          <td>
-            <span th:text="${formats.number(profile.habitableSurface)}"
-              >42,5</span
-            >
-            m²
+          <td th:text="|${formats.number(profile.habitableSurface)} m²|">
+            42,5 m²
           </td>
         </tr>
         <tr th:if="${profile.roomCount > 0}">

backend/src/main/resources/templates/rental/payment-receipt.html

@@ -1,4 +1,3 @@
-<!doctype html>
 <html lang="fr" xmlns:th="http://www.thymeleaf.org">
   <head>
     <meta charset="UTF-8" />

backend/src/main/resources/templates/rental/rent-receipt.html

@@ -1,4 +1,3 @@
-<!doctype html>
 <html lang="fr" xmlns:th="http://www.thymeleaf.org">
   <head>
     <meta charset="UTF-8" />

backend/src/main/resources/templates/rental/rent-revision-request.html

@@ -1,4 +1,3 @@
-<!doctype html>
 <html lang="fr" xmlns:th="http://www.thymeleaf.org">
   <head>
     <meta charset="UTF-8" />