Updated headless browser (Should be as fast as it was before)

Added in Book Boards! (NEW!)
Updated rendering logic
Updated search logic
Updated extension loading logic
Updated image handling logic

main.js

@@ -73,6 +73,7 @@ function createWindow() {
 app.whenReady().then(() => {
   createWindow();
   initDiscordRPC();
+  headlessBrowser.init()
   app.on('activate', function () {
     if (BrowserWindow.getAllWindows().length === 0) createWindow();
   });
@@ -93,6 +94,10 @@ const dbHandlers = require('./src/ipc/db-handlers')(db);
 ipcMain.handle('api:getSources', apiHandlers.getSources);
 ipcMain.handle('api:search', apiHandlers.search);
 
+ipcMain.handle('api:getChapters', apiHandlers.getChapters);
+ipcMain.handle('api:getPages', apiHandlers.getPages);
+ipcMain.handle('api:getMetadata', apiHandlers.getMetadata);
+
 ipcMain.handle('db:getFavorites', dbHandlers.getFavorites);
 ipcMain.handle('db:addFavorite', dbHandlers.addFavorite);
 ipcMain.handle('db:removeFavorite', dbHandlers.removeFavorite);