Guide users to Python options when trying to run scyjava python scripts

[hinerm]

If we are not in python mode but select Python (scyjava) from the script language list, or try to actually run a Python (scyjava) script, we should inform the user that they need to restart in Python mode and perhaps even open the Python settings for them.

Currently we just get an error when we run:

Started New_.py at Sat Aug 23 14:18:16 CDT 2025
java.lang.IllegalStateException: The PythonScriptRunner could not be found in the ObjectService. To use the
Python script engine, you must call scyjava.enable_scijava_scripting(context)
with this script engine's associated SciJava context before using it.
	at org.scijava.plugins.scripting.python.PythonScriptEngine.eval(PythonScriptEngine.java:81)
	at org.scijava.script.ScriptModule.run(ScriptModule.java:173)
	at org.scijava.module.ModuleRunner.run(ModuleRunner.java:165)
	at org.scijava.module.ModuleRunner.call(ModuleRunner.java:125)
	at org.scijava.module.ModuleRunner.call(ModuleRunner.java:64)
	at org.scijava.thread.DefaultThreadService.lambda$wrap$2(DefaultThreadService.java:247)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)