Rename /deep/ to ::v-deep since we use dart-sass now

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/views/Event/Edit.vue

@@ -280,7 +280,7 @@ main section > .container {
 }
 
 .save__navbar {
-  /deep/ .navbar-menu,
+  ::v-deep .navbar-menu,
   .navbar-end {
     flex-wrap: wrap;
   }
@@ -303,7 +303,7 @@ h2.subtitle {
 }
 
 .event__status__field {
-  /deep/ .field.has-addons {
+  ::v-deep .field.has-addons {
     display: flex;
     flex-wrap: wrap;
     justify-content: flex-start;

js/src/views/Event/Event.vue

@@ -1196,33 +1196,33 @@ div.sidebar {
   }
 
   .description-content {
-    /deep/ h1 {
+    ::v-deep h1 {
       font-size: 2rem;
     }
 
-    /deep/ h2 {
+    ::v-deep h2 {
       font-size: 1.5rem;
     }
 
-    /deep/ h3 {
+    ::v-deep h3 {
       font-size: 1.25rem;
     }
 
-    /deep/ ul {
+    ::v-deep ul {
       list-style-type: disc;
     }
 
-    /deep/ li {
+    ::v-deep li {
       margin: 10px auto 10px 2rem;
     }
 
-    /deep/ blockquote {
+    ::v-deep blockquote {
       border-left: 0.2em solid #333;
       display: block;
       padding-left: 1em;
     }
 
-    /deep/ p {
+    ::v-deep p {
       margin: 10px auto;
 
       a {