separate component for idea-icons.jar, from jedit_build (see also ff0e0bb81597);

--- a/Admin/components/components.sha1	Sat May 08 00:31:51 2021 +0200
+++ b/Admin/components/components.sha1	Sat May 08 13:06:30 2021 +0200
@@ -92,6 +92,7 @@
 7ca3e6a8c9bd837990e64d89e7fa07a7e7cf78ff  flatlaf-1.0.tar.gz
 f339234ec18369679be0095264e0c0af7762f351  gnu-utils-20210414.tar.gz
 683acd94761ef460cca1a628f650355370de5afb  hol-light-bundle-0.5-126.tar.gz
+989234b3799fe8750f3c24825d1f717c24fb0214  idea-icons-20210508.tar.gz
 20b53cfc3ffc5b15c1eabc91846915b49b4c0367  isabelle_fonts-20151021.tar.gz
 736844204b2ef83974cd9f0a215738b767958c41  isabelle_fonts-20151104.tar.gz
 9502c1aea938021f154adadff254c5c55da344bd  isabelle_fonts-20151106.tar.gz

--- a/Admin/components/main	Sat May 08 00:31:51 2021 +0200
+++ b/Admin/components/main	Sat May 08 13:06:30 2021 +0200
@@ -6,6 +6,7 @@
 cvc4-1.8
 e-2.5-1
 flatlaf-1.0
+idea-icons-20210508
 isabelle_fonts-20210322
 jdk-15.0.2+7
 jedit_build-20210201

--- a/src/Tools/jEdit/lib/Tools/jedit	Sat May 08 00:31:51 2021 +0200
+++ b/src/Tools/jEdit/lib/Tools/jedit	Sat May 08 13:06:30 2021 +0200
@@ -264,7 +264,6 @@
   "kappalayout.jar"
   "Navigator.jar"
   "SideKick.jar"
-  "idea-icons.jar"
   "jsr305-2.0.0.jar"
 )
 

--- a/src/Tools/jEdit/src/jedit_lib.scala	Sat May 08 00:31:51 2021 +0200
+++ b/src/Tools/jEdit/src/jedit_lib.scala	Sat May 08 13:06:30 2021 +0200
@@ -301,7 +301,7 @@
   {
     val name1 =
       if (name.startsWith("idea-icons/")) {
-        val file = Path.explode("$JEDIT_HOME/dist/jars/idea-icons.jar").file.toURI.toASCIIString
+        val file = Path.explode("$ISABELLE_IDEA_ICONS").file.toURI.toASCIIString
         "jar:" + file + "!/" + name
       }
       else name