Merge branch '6.3' into 6.4

* 6.3:
  [WebProfilerBundle] Fix the design of the compact toolbar button
  Add missing Chinese(zh_TW) translations
  [VarExporter] Nitpicking in README.md

Author: nicolas-grekas

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar.css.twig

@@ -47,6 +47,8 @@
 }
 
 .sf-minitoolbar {
+    --sf-toolbar-gray-800: #262626;
+
     background-color: var(--sf-toolbar-gray-800);
     border-top-left-radius: 4px;
     bottom: 0;
@@ -66,6 +68,8 @@
 }
 .sf-minitoolbar svg,
 .sf-minitoolbar img {
+    --sf-toolbar-gray-200: #e5e5e5;
+
     color: var(--sf-toolbar-gray-200);
     max-height: 24px;
     max-width: 24px;

src/Symfony/Component/Validator/Resources/translations/validators.zh_TW.xlf

@@ -426,6 +426,10 @@
                 <source>Using hidden overlay characters is not allowed.</source>
                 <target>不允許使用隱藏的覆蓋字元。</target>
             </trans-unit>
+            <trans-unit id="110">
+                <source>The extension of the file is invalid ({{ extension }}). Allowed extensions are {{ extensions }}.</source>
+                <target>無效的副檔名 ({{ extension }}). 允許的副檔名有 {{ extensions }}.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

src/Symfony/Component/VarExporter/README.md

@@ -7,10 +7,10 @@ of objects:
 - `VarExporter::export()` allows exporting any serializable PHP data structure to
   plain PHP code. While doing so, it preserves all the semantics associated with
   the serialization mechanism of PHP (`__wakeup`, `__sleep`, `Serializable`,
-  `__serialize`, `__unserialize`.)
+  `__serialize`, `__unserialize`);
 - `Instantiator::instantiate()` creates an object and sets its properties without
-  calling its constructor nor any other methods.
-- `Hydrator::hydrate()` can set the properties of an existing object.
+  calling its constructor nor any other methods;
+- `Hydrator::hydrate()` can set the properties of an existing object;
 - `Lazy*Trait` can make a class behave as a lazy-loading ghost or virtual proxy.
 
 VarExporter::export()
@@ -26,7 +26,7 @@ Unlike `var_export()`, this works on any serializable PHP value.
 It also provides a few improvements over `var_export()`/`serialize()`:
 
  * the output is PSR-2 compatible;
- * the output can be re-indented without messing up with `\r` or `\n` in the data
+ * the output can be re-indented without messing up with `\r` or `\n` in the data;
  * missing classes throw a `ClassNotFoundException` instead of being unserialized
    to `PHP_Incomplete_Class` objects;
  * references involving `SplObjectStorage`, `ArrayObject` or `ArrayIterator`
@@ -61,7 +61,7 @@ Hydrator::hydrate($object, [], [
 ------------
 
 The component provides two lazy-loading patterns: ghost objects and virtual
-proxies (see https://martinfowler.com/eaaCatalog/lazyLoad.html for reference.)
+proxies (see https://martinfowler.com/eaaCatalog/lazyLoad.html for reference).
 
 Ghost objects work only with concrete and non-internal classes. In the generic
 case, they are not compatible with using factories in their initializer.