fix(packages/core): missing tooltip on sidecar maximize/minimize buttons

Fixes #2883

Author: starpit

packages/core/templates/index.html

@@ -339,18 +339,22 @@
                         <!-- maximize button -->
                         <div class="sidecar-bottom-stripe-button sidecar-bottom-stripe-maximize toggle-sidecar-maximization-button">
                           <span class="maximize-button-label">
-                            <a href="#" class="graphical-icon kui--tab-navigatable kui--notab-when-sidecar-hidden" tabindex="-1" data-balloon="Expand to full width" data-balloon-length="medium" data-balloon-pos="down-right" aria-label="Expand to full width">
-                              <svg focusable="false" preserveAspectRatio="xMidYMid meet" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" aria-hidden="true">
-                                <path d="M10 1v1h3.3L8.5 6.8l.7.7L14 2.7V6h1V1zM7.5 9.2l-.7-.7L2 13.3V10H1v5h5v-1H2.7z"></path>
-                              </svg>
-                            </a>
+                            <div data-balloon="Expand to full width" data-balloon-length="medium" data-balloon-pos="down-right" aria-label="Expand to full width">
+                              <a href="#" class="graphical-icon kui--tab-navigatable kui--notab-when-sidecar-hidden" tabindex="-1">
+                                <svg focusable="false" preserveAspectRatio="xMidYMid meet" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" aria-hidden="true">
+                                  <path d="M10 1v1h3.3L8.5 6.8l.7.7L14 2.7V6h1V1zM7.5 9.2l-.7-.7L2 13.3V10H1v5h5v-1H2.7z"></path>
+                                </svg>
+                              </a>
+                            </div>
                           </span>
                           <span class="unmaximize-button-label">
-                            <a href="#" class="graphical-icon kui--tab-navigatable kui--notab-when-sidecar-hidden" tabindex="-1" data-balloon="Restore split screen" data-balloon-length="medium" data-balloon-pos="down-right" aria-label="Restore split screen">
-                              <svg focusable="false" preserveAspectRatio="xMidYMid meet" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" aria-hidden="true">
-                                <path d="M3 9v1h2.3L1 14.3l.7.7L6 10.7V13h1V9zm10-2V6h-2.3L15 1.7l-.7-.7L10 5.3V3H9v4z"></path>
-                              </svg>
-                            </a>
+                            <div data-balloon="Restore split screen" data-balloon-length="medium" data-balloon-pos="down-right" aria-label="Restore split screen">
+                              <a href="#" class="graphical-icon kui--tab-navigatable kui--notab-when-sidecar-hidden" tabindex="-1">
+                                <svg focusable="false" preserveAspectRatio="xMidYMid meet" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" aria-hidden="true">
+                                  <path d="M3 9v1h2.3L1 14.3l.7.7L6 10.7V13h1V9zm10-2V6h-2.3L15 1.7l-.7-.7L10 5.3V3H9v4z"></path>
+                                </svg>
+                              </a>
+                            </div>
                           </span>
                         </div>