freebuff web: Remove navbar, reorder philosophy section #5907

Job	Run time
build-and-check	3m 3s
test-integration-packages/internal	1m 5s
test-integration-packages/billing	1m 5s
test-integration-web	41s
test-integration-cli	39s
test-integration-packages/agent-runtime	35s
test-integration-common	41s
test-packages/agent-runtime	42s
test-web	53s
test-.agents	38s
test-packages/internal	44s
test-common	45s
test-packages/billing	38s
test-integration-sdk	1m 24s
test-sdk	46s
test-cli	55s
	15m 14s

Provide feedback