feat(landlord-profile): enhance profile completion dialog and form layout

frontend/src/app/components/landlord-profile-form/landlord-profile-form.css

@@ -3,6 +3,11 @@
   container-type: inline-size;
 }
 
+:host(.profile-completion-form) {
+  --mat-button-text-horizontal-padding: var(--space-1, 0.25rem);
+  --mat-button-filled-horizontal-padding: var(--space-1, 0.25rem);
+}
+
 .profile-form {
   display: grid;
   gap: var(--space-4, 1rem);
@@ -32,6 +37,12 @@
   justify-content: flex-end;
 }
 
+:host(.profile-completion-form) .profile-actions {
+  flex-wrap: nowrap;
+  justify-content: space-between;
+  gap: var(--space-1, 0.25rem);
+}
+
 @container (min-width: 32rem) {
   .profile-fields {
     grid-template-columns: repeat(2, minmax(0, 1fr));

frontend/src/app/components/landlord-profile-form/landlord-profile-form.html

@@ -52,6 +52,7 @@
     /></mat-form-field>
   </fieldset>
   <div class="profile-actions">
+    <ng-content select="[profile-form-secondary-action]" />
     <button mat-flat-button type="submit" class="primary-action">
       @if (saving()) {
         <mat-spinner diameter="18" aria-hidden="true" /> Enregistrement…