Modernize suggestor.js implementation and simplify script tags (#2963)

- Remove unnecessary type="text/javascript" from script tags in index.jsp (HTML5 default)
- Refactor suggestor.js with modern jQuery event handling (.on() instead of .hover())
- Replace inefficient polling (setInterval) with input event listener for better performance
- Add debouncing (300ms) to reduce unnecessary AJAX calls
- Improve code formatting and readability with consistent indentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[email protected]>

Author: marevol

src/main/webapp/WEB-INF/view/index.jsp

@@ -166,10 +166,10 @@ ${fe:html(true)}
 		<jsp:include page="footer.jsp" />
 	</la:form>
 	<input type="hidden" id="contextPath" value="${contextPath}" />
-	<script type="text/javascript" src="${fe:url('/js/jquery-3.7.1.min.js')}"></script>
-	<script type="text/javascript" src="${fe:url('/js/popper.min.js')}"></script>
-	<script type="text/javascript" src="${fe:url('/js/bootstrap.min.js')}"></script>
-	<script type="text/javascript" src="${fe:url('/js/suggestor.js')}"></script>
-	<script type="text/javascript" src="${fe:url('/js/index.js')}"></script>
+	<script src="${fe:url('/js/jquery-3.7.1.min.js')}"></script>
+	<script src="${fe:url('/js/popper.min.js')}"></script>
+	<script src="${fe:url('/js/bootstrap.min.js')}"></script>
+	<script src="${fe:url('/js/suggestor.js')}"></script>
+	<script src="${fe:url('/js/index.js')}"></script>
 </body>
 ${fe:html(false)}