v2.1.0

• New Feature: Added per language "Default Codes" in settings, which is code that is always prepended/inserted to a file before it is compiled/executed.
• New Feature: Added "Clear" and "Delete" Buttons for code blocks.
• Improvement: Implemented automatic parsing of Java executable name from code using regex. No need to enter the file name manually.
• Improvement: Implemented compilation of TypeScript files the official way using tsc, then using node to run the resulting Javascript file.
• Change: Changed compilation error message appearance, prints the entire error message and allows to copy the error message.
• Change: Removed the "Code copied to clipboard." notification.
• Bug Fix: Fixed bug in "Run on Markdown" where last line of result block would be missing a newline.