* chore(javaversion): refactor searchPotentialJavaExecutables
This is a very draft quality PR. I don't even have JDK installed to build it, that's how draft it is.
1. Refactor function to share common steps of the code: system locations, Minecraft launcher runtimes, PATH/HMCL_JRES
2. Modify Minecraft launcher runtimes to include java-runtime-beta
* Update HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/JavaVersion.java
* Make optional happy
* correct stream-of paren; add macOS bundle exploration
* who needs exploreBundle?
* fix a stupid typo; add debugging tools. It works!
b9ec22677e