Manage the whitespace produced by the compiler

src/compiler.js

         const attributes = node.args.map(arg => `${arg.attributeName}="${this.compileAttribute(arg.attributeValue)}"`)
         const compiler = new Compiler(node.subtree, this.context)
         const content = compiler.compile()
-        this.result += `
-          <${node.functionName}${attributes.length ? ' ' : ''}${attributes.join(' ')}>
-            ${content}
-          </${node.functionName}>
-        `
+        this.result += `<${node.functionName}${attributes.length ? ' ' : ''}${attributes.join(' ')}>${content}</${node.functionName}>`
       } else if (node.type === 'string') {
         this.result += node.content
       } else if (node.type === 'identifier') {
       }
     })
 
-    return this.result
+    return this.result.trim()
   }
 
   compileAttribute(attribute) {