message: Fix GenerationModal styles
diff: .generationItems {
  - margin-top: 40px;
  - padding-top: 0.6em;
  - padding-bottom: 0.6em;
  + margin-top: 2em;
  + margin-bottom: 3em;
  background-color: var(--vscode-editorWidget-border);
  }
  .footer {
  - margin-top: 60px;
  - float: right;
  - align-items: center;
  display: flex;
  + align-items: center;
  + justify-content: flex-end;
  }
  .footer > button {
  - align-items: center;
  margin-left: 1em;
  - display: flex;
  - justify-content: space-between;
  - padding: 10px 33px;
  -}
  -
  -.footer > button:focus {
  - outline: 1px solid var(--vscode-contrastActiveBorder);
  }
  