Enable ESLint no-unused-expressions rule (#4363)

# Description of Changes
Enable ESLint [no-unused-expressions
rule](https://typescript-eslint.io/rules/no-unused-expressions/)

frontend/src/components/tools/toolPicker/ToolSearch.tsx

@@ -126,7 +126,7 @@ const ToolSearch = ({
                 key={id}
                 variant="subtle"
                 onClick={() => {
-                  onToolSelect && onToolSelect(id);
+                  onToolSelect?.(id);
                   setDropdownOpen(false);
                 }}
                 leftSection={<div style={{ color: "var(--tools-text-and-icon-color)" }}>{tool.icon}</div>}