message: Fix `widen-search-field` feature
diff: +/*
  +This feature has to work on:
  +https://github.com/issues
  +https://github.com/pulls
  +https://github.com/sindresorhus/refined-github/issues
  +https://github.com/sindresorhus/refined-github/pulls
  +
  +But not affect these pages, because they also use `.subnav` but don't benefit from a larger field
  +https://github.com/sindresorhus/refined-github/releases
  +https://github.com/sindresorhus/refined-github/tags
  +https://github.com/sindresorhus/refined-github/labels
  +https://github.com/sindresorhus/refined-github/milestones
  +https://github.com/sindresorhus/refined-github/releases/tag/19.9.16
  +*/
  +
  /* Expand issue search field width */
  -.subnav,
  +.repository-content [role='search'], /* Repo issue/PR lists */
  +.subnav-links + .float-right, /* Global search pages */
  .subnav-search,
  -.subnav-search-input,
  -.subnav [role='search'],
  -.page-content .subnav > .float-right { /* Global search field container */
  +.subnav-search-input {
  flex-grow: 1;
  display: flex;
  - font: none !important;
  align-items: flex-start;
  }
  -/* Move `New issue` button back to the right */
  -.subnav .float-right {
  - order: 100;
  +/* Global search, labels: enable field expansion */
  +.page-content > .subnav:first-child {
  + display: flex;
  +}
  +
  +/* Space out buttons */
  +.subnav > .float-right, /* On Releases page */
  +.subnav > .btn-primary { /* On `Issues` and `Pull Requests` pages */
  margin-left: 20px;
  }
  -/*
  -Take full available width for extra buttons on Releases page.
  -It excludes anchor tags which are `New Issue` and `New Pull Request` on
  -issues and pull-requests tab respectively.
  -*/
  -.subnav > :first-child:not(a) {
  - flex-grow: 1;
  +/* Releases: place Releases/Tags selector on the same line as `Draft new release` (GitHub bug) */
  +.subnav .d-flex.flex-md-row.flex-justify-between.flex-md-items-center {
  + float: left;
  }
  /* Reset width of search field in global lists */
  