Fix typos in code and documentation

See gh-31734

spring-boot-project/spring-boot-devtools/src/test/java/org/springframework/boot/devtools/restart/server/RestartServerTests.java

@@ -89,7 +89,7 @@ class RestartServerTests {
 	@Test
 	void updateReplacesLocalFilesWhenPossible(@TempDir File directory) throws Exception {
 		// This is critical for Cloud Foundry support where the application is
-		// run exploded and resources can be found from the servlet root (outside of the
+		// run exploded and resources can be found from the servlet root (outside the
 		// classloader)
 		File classFile = new File(directory, "ClassA.class");
 		FileCopyUtils.copy("abc".getBytes(), classFile);