set text-output border, top and bottom margins to 0px (#93)

Author: RandomFractals

src/renderer/styles.css

@@ -6,9 +6,11 @@
 
 .text-output {
   background-color: var(--vscode-editor-background);
+  border-width: 0px;
   font-family: var(--vscode-editor-font-family);
   font-size: var(--vscode-editor-font-size);
   margin-top: 0px;
+  margin-bottom: 0px;
   max-height: 360px;
   overflow: auto;
   tab-size: 2;