fix: make Semantic Tokens editor read-only

Signed-off-by: Fred Bricon <fbricon@gmail.com>

src/main/java/com/redhat/devtools/lsp4ij/features/semanticTokens/inspector/SemanticTokensInspectorToolWindowPanel.java

@@ -159,6 +159,7 @@ private JBTextArea createEditor() {
         semanticTokenEditor.setLineWrap(true);
         semanticTokenEditor.setWrapStyleWord(true);
         semanticTokenEditor.setFont(JBFont.regular());
+        semanticTokenEditor.setEditable(false);
         return semanticTokenEditor;
     }