Rename Dasharo Entry Subscription to Dasharo Pro Package

[philipandag]

Also change all occurences of DES.
Didn't change any filenames or links.
There were occurences where the DES was referenced as a former name of DPP. I have kept them.

[miczyg1]

@philipandag you may change the relevant links. For any links you change, simply add a redirect here: https://github.com/Dasharo/docs/pull/914/files#diff-98d0f806abc9af24e6a7c545d3d77e8f9ad57643e27211d7a7b896113e420ed2R90

Also I won't approve unless CI passes, we don't want broken links.

[philipandag]

Also I won't approve unless CI passes, we don't want broken links.

All the "broken" links work fine when I go there manually. I guess it was some network issue?

[philipandag]

The broken links from before are not detected anymore, although there are still some broken links to a google spreadsheet showing test results for PC Engines test results in files which I haven't modified.

1. docs/variants/pc_engines/releases_seabios.md: link to releases spreadsheet

## v24.05.00.01 - 2024-06-28

Test results for this release can be found
[here](https://docs.google.com/spreadsheets/d/1_uRhVo9eYeZONnelymonYp444zYHT_Q_qmJEJ8_XqJc/edit?usp=sharing).

2. docs/variants/pc_engines/post-eol-fw-announcement.md:

Since February 2016, we have made [87 binary releases][3] for all PC Engines
hardware platforms from apu1 through famous apu2 up to apu7. We published over
[30k test results][4] from our automated testing framework. <<<< 30k test results is broken

3. docs/variants/pc_engines/faq.md:

**Test Scope:**
While the exact test scope for the upcoming BIOS version is currently being
finalized, it will offer feature parity with version 4.19.0.1. The test scope
for version 4.19.0.1, which might give you an idea of what to expect, can be
found in this document: [Dasharo Test Scope Document](https://docs.google.com/spreadsheets/d/1_uRhVo9eYeZONnelymonYp444zYHT_Q_qmJEJ8_XqJc/edit#gid=0).

Was the spreadsheet moved somewhere else?