Split up main class to multiple classes, each for each pane in the main window

.gitignore

src/main/java/com/application/DB/Constants.java

src/main/java/com/application/DB/HelpingFunctions.java

src/main/java/com/application/GUI/Panes/BottomBar.java

src/main/java/com/application/GUI/Panes/LogoBar.java

src/main/java/com/application/GUI/Panes/MenuBar.java

src/main/java/com/application/GUI/Panes/SideBar.java

src/main/java/com/application/Main.java

.../com.application/sf-drying-optimization-1e234ad2b0f4.json

.../com.application/sf-drying-optimization-8a2e1b7ffc14.json

target/classes/com/application/DB/Constants.class

target/classes/com/application/DB/HelpingFunctions.class

target/classes/com/application/GUI/Panes/BottomBar.class

target/classes/com/application/GUI/Panes/LogoBar.class

target/classes/com/application/GUI/Panes/MenuBar.class

...ses/com/application/GUI/Panes/SideBar$1WorkerThread.class

target/classes/com/application/GUI/Panes/SideBar.class

target/classes/com/application/Main$1WorkerThread.class

target/classes/com/application/Main.class