[5651] Add support for undo redo on label appearance and label layout data

Bug: #5651
Signed-off-by: Michaël Charfadi <michael.charfadi@obeosoft.com>

Author: mcharfadi

CHANGELOG.adoc

@@ -212,6 +212,7 @@ In conjonction of the `workbenchViewContributionExtensionPoint` frontend extensi
 - https://github.com/eclipse-sirius/sirius-web/issues/5958[#5958] [diagram] Allow the execution of adjust size tool on a multi selection
 - https://github.com/eclipse-sirius/sirius-web/issues/5937[#5937] [diagram] Add support for bending points for oblique edges
 - https://github.com/eclipse-sirius/sirius-web/issues/5300[#5300] [diagram] Add undo redo for node layout
+- https://github.com/eclipse-sirius/sirius-web/issues/5651[#5651] [diagram] Add undo redo for label layout and appearance
 
 
 === Improvements

doc/docs-site/build/site/_/css/search.css

@@ -0,0 +1,131 @@
+.search-result-dropdown-menu {
+  position: absolute;
+  z-index: 100;
+  display: block;
+  right: 0;
+  left: inherit;
+  top: 100%;
+  border-radius: 4px;
+  margin: 6px 0 0;
+  padding: 0;
+  text-align: left;
+  height: auto;
+  background: transparent;
+  border: none;
+  max-width: 600px;
+  min-width: 500px;
+  box-shadow: 0 1px 0 0 rgb(0 0 0 / 20%), 0 2px 3px 0 rgb(0 0 0 / 10%);
+}
+
+@media screen and (max-width: 768px) {
+  .search-result-dropdown-menu {
+    min-width: calc(100vw - 3.75rem);
+  }
+}
+
+.search-result-dataset {
+  position: relative;
+  border: 1px solid #d9d9d9;
+  background: #fff;
+  border-radius: 4px;
+  overflow: auto;
+  padding: 8px;
+  max-height: calc(100vh - 5.25rem);
+  line-height: 1.5;
+}
+
+.search-result-item {
+  display: flex;
+  margin-top: 0.5rem;
+}
+
+.search-result-component-header {
+  color: #1e1e1e;
+  border-bottom: 1px solid #ddd;
+  margin-left: 0.5em;
+  margin-right: 0.5em;
+  padding-top: 0.25em;
+  padding-bottom: 0.25em;
+}
+
+.search-result-document-title {
+  width: 33%;
+  border-right: 1px solid #ddd;
+  color: #02060c;
+  font-weight: 500;
+  font-size: 0.8rem;
+  padding: 0.5rem 0.5rem 0.5rem 0;
+  text-align: right;
+  position: relative;
+  word-wrap: break-word;
+}
+
+.search-result-document-hit {
+  flex: 1;
+  font-size: 0.75rem;
+  color: #63676d;
+}
+
+.search-result-document-hit > a {
+  color: inherit;
+  display: block;
+  padding: 0.55rem 0.25rem 0.55rem 0.75rem;
+}
+
+.search-result-document-hit > a:hover {
+  background-color: rgb(69 142 225 / 5%);
+}
+
+.search-result-document-hit .search-result-highlight {
+  color: #174d8c;
+  background: rgb(143 187 237 / 10%);
+  padding: 0.1em 0.05em;
+  font-weight: 500;
+}
+
+.search-result-document-hit .search-result-section-title {
+  color: #303030;
+  font-weight: 500;
+  font-size: 1.05em;
+  margin-bottom: 0.25em;
+}
+
+.search-result-document-hit .search-result-keywords {
+  margin-top: 0.25em;
+}
+
+.search-result-document-hit .search-result-keywords-field-label {
+  font-weight: bold;
+}
+
+#search-input {
+  padding: 0.25em;
+}
+
+#search-input:focus {
+  outline: none;
+}
+
+#search-field {
+  display: flex;
+}
+
+#search-field .filter {
+  background: #fff linear-gradient(180deg, #e1e1e1 0, #e1e1e1) no-repeat 0 / 1px 50%;
+  border: 1px solid #e1e1e1;
+  border-left: none;
+  border-radius: 0 0.1em 0.1em 0;
+  color: #5d5d5d;
+  cursor: pointer;
+  font-size: 0.875em;
+  display: flex;
+  align-items: center;
+  padding: 0 0.5rem;
+  white-space: nowrap;
+  overflow: hidden;
+}
+
+#search-field.has-filter > input {
+  border-right: none;
+  border-radius: 0.1em 0 0 0.1em;
+}