application/javascript: Rename to text/javascript

As per RFC 9239.

Miller, M., Borins, M., Bynens, M., and B. Farias, "Updates to ECMAScript
Media Types", RFC 9239, DOI 10.17487/RFC9239, May 2022,
<https://www.rfc-editor.org/info/rfc9239>.

data/freedesktop.org.xml.in

@@ -2604,10 +2604,10 @@ command to generate the output files.
     </magic>
     <glob pattern="*.pack"/>
   </mime-type>
-  <mime-type type="application/javascript">
+  <mime-type type="text/javascript">
     <comment>JavaScript program</comment>
     <alias type="application/x-javascript"/>
-    <alias type="text/javascript"/>
+    <alias type="application/javascript"/>
     <sub-class-of type="application/ecmascript"/>
     <generic-icon name="text-x-script"/>
     <magic>
@@ -2630,7 +2630,7 @@ command to generate the output files.
     <comment>JSON document</comment>
     <acronym>JSON</acronym>
     <expanded-acronym>JavaScript Object Notation</expanded-acronym>
-    <sub-class-of type="application/javascript"/>
+    <sub-class-of type="text/javascript"/>
     <generic-icon name="text-x-script"/>
     <glob pattern="*.json"/>
   </mime-type>

tests/mime-detection/list

@@ -302,11 +302,11 @@ helloworld.vbs text/vbscript ox
 build.gradle text/x-gradle ox
 ico.ksy text/x-kaitai-struct ox
 # Copied from http://asurvey.net/ccsfagent/media/survey.js
-survey.js application/javascript ox
+survey.js text/javascript ox
 # Copied from gecko/accessible/src/jsat/Utils.jsm in Boot2Gecko
-Utils.jsm application/javascript ox
-esm.mjs application/javascript ox
-javascript-without-extension application/javascript xoo
+Utils.jsm text/javascript ox
+esm.mjs text/javascript ox
+javascript-without-extension text/javascript xoo
 # The following two copied from RFC 4627.
 json_object.json application/json ox
 json_array.json application/json ox