Change NO_EXPLICIT_VISIBILITY_IN_API_MODE diagnostic range to 'declaration modifiers + name'.

Motivation: missing visibility modifier is an error in visibility modifiers list, so we should highlight this list.
Including a name in the range is convenient for using alt+enter (you don't have to move cursor from name to fun/class/val keyword)

 Also change NO_EXPLICIT_RETURN_TYPE_IN_API_MODE diagnostic range to 'declaration name' to match corresponding IDE inspection.

Fix stylistic problems and typos after review

compiler/testData/cli/js/jsExtraHelp.out

@@ -27,7 +27,7 @@ where advanced options include:
   -Xeffect-system            Enable experimental language feature: effect system
   -Xexperimental=<fq.name>   Enable and propagate usages of experimental API for marker annotation with the given fully qualified name
   -Xexplicit-api={strict|warning|disable}
-                             Force compiler to report errors an all public API declarations without explicit visibility.
+                             Force compiler to report errors on all public API declarations without explicit visibility or return type.
                              Use 'warning' level to issue warnings instead of errors.
   -Xinline-classes           Enable experimental inline classes
   -Xintellij-plugin-root=<path> Path to the kotlin-compiler.jar or directory where IntelliJ configuration files can be found