message: docs: add FireFox ESR to the supported list
  With this change we add FireFox Extended Support Release (ESR) to the list of supported browsers. The ESR latest version is used mainly in corporate environments (intranet applications, etc.) due to its support and stability guarantees.
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diff: @@ -34,7 +34,7 @@ Angular supports most recent browsers. This includes the following specific vers
  </td>
  <td>
  - latest
  + latest and extended support release (ESR)
  </td>
  </tr>
  