Tidy links, and lint (#2435)

Tidies up a number of things:

- Outdated links that redirect
- Dead links
- Remove unnecessary parameters eg "en" and "en-US"
- Shortened amazon, apps.apple.com, reddit links
- Removed trailing /
- Remove www (except for PG assets)
- Optimize unoptimized SVGs and remove xml declarations
- Lint yaml, md files

Co-Authored-By: Daniel Gray <dngray@privacyguides.org>

theme/assets/img/messengers/briar.svg

@@ -1,2 +1 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <svg width="128" height="128" version="1.1" viewBox="0 0 33.866 33.866" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(.14411 0 0 .14411 -.072056 -2e-7)"><g fill="#87c214"><rect class="st0" x="47.7" y="47.2" width="43.7" height="43.7" display="none"/><path class="st1" d="m47.7 97.8v119.5c0 9.7 7.9 17.7 17.7 17.7h8.3c9.7 0 17.7-8 17.7-17.7v-119.5z"/><path class="st1" d="m91.3 40.2v-22.5c0-9.7-7.9-17.7-17.6-17.7h-8.3c-9.7 0-17.7 8-17.7 17.7v22.5z"/></g><path class="st2" d="m73.7 0c9.7 0 17.7 8 17.7 17.7v199.7c0 9.7-8 17.7-17.7 17.7h-8.3c-9.7 0-17.7-8-17.7-17.7v-199.7c0-9.7 7.9-17.7 17.6-17.7h8.4m0-7h-8.3c-13.7 0-24.7 11.1-24.7 24.7v199.7c0 13.6 11.1 24.7 24.7 24.7h8.3c13.6 0 24.7-11.1 24.7-24.7v-199.7c-0.1-13.6-11.1-24.7-24.7-24.7z" display="none" fill="#fff"/><g fill="#87c214"><path class="st1" d="m188.3 137.2v-119.5c0-9.7-7.9-17.7-17.6-17.7h-8.3c-9.7 0-17.7 8-17.7 17.7v119.5z"/><rect class="st0" x="144.7" y="144.2" width="43.7" height="43.7" display="none"/><path class="st1" d="m144.7 194.8v22.5c0 9.7 8 17.7 17.7 17.7h8.3c9.7 0 17.7-8 17.7-17.7v-22.5z"/></g><path class="st2" d="m170.7 0c9.7 0 17.7 8 17.7 17.7v199.7c0 9.7-7.9 17.7-17.7 17.7h-8.3c-9.7 0-17.7-8-17.7-17.7v-199.7c0-9.7 8-17.7 17.7-17.7h8.3m0-7h-8.3c-13.6 0-24.7 11.1-24.7 24.7v199.7c0 13.6 11.1 24.7 24.7 24.7h8.3c13.6 0 24.7-11.1 24.7-24.7v-199.7c-0.1-13.6-11.1-24.7-24.7-24.7z" display="none" fill="#fff"/><g fill="#95d220"><path class="st3" d="m40.7 144.2h-22.5c-9.7 0-17.7 7.9-17.7 17.7v8.3c0 9.7 7.9 17.7 17.7 17.7h22.5z"/><rect class="st4" x="47.7" y="144.2" width="43.7" height="43.7" display="none"/><path class="st3" d="m217.8 144.2h-119.5v43.7h119.5c9.7 0 17.7-8 17.7-17.7v-8.3c0-9.8-8-17.7-17.7-17.7z"/></g><path class="st2" d="m217.8 144.2c9.7 0 17.7 7.9 17.7 17.7v8.3c0 9.7-8 17.7-17.7 17.7h-199.6c-9.7 0-17.7-8-17.7-17.7v-8.3c0-9.7 7.9-17.7 17.7-17.7h199.6m0-7h-199.6c-13.6 0-24.7 11.1-24.7 24.7v8.3c0 13.6 11.1 24.7 24.7 24.7h199.7c13.6 0 24.7-11.1 24.7-24.7v-8.3c-0.1-13.7-11.2-24.7-24.8-24.7z" display="none" fill="#fff"/><g fill="#95d220"><rect class="st4" x="144.7" y="47.2" width="43.7" height="43.7" display="none"/><path class="st3" d="m137.7 47.2h-119.5c-9.7 0-17.7 7.9-17.7 17.7v8.3c0 9.7 7.9 17.7 17.7 17.7h119.5z"/><path class="st3" d="m217.8 47.2h-22.5v43.7h22.5c9.7 0 17.7-7.9 17.7-17.7v-8.3c0-9.8-8-17.7-17.7-17.7z"/></g><path class="st2" d="m217.8 47.2c9.7 0 17.7 7.9 17.7 17.7v8.3c0 9.7-8 17.7-17.7 17.7h-199.6c-9.7 0-17.7-7.9-17.7-17.7v-8.3c0-9.7 7.9-17.7 17.7-17.7h199.6m0-7h-199.6c-13.6 0-24.7 11-24.7 24.6v8.3c0 13.6 11.1 24.7 24.7 24.7h199.7c13.6 0 24.7-11.1 24.7-24.7v-8.3c-0.1-13.6-11.2-24.6-24.8-24.6z" display="none" fill="#fff"/></g></svg>

theme/assets/img/messengers/element.svg

@@ -1,2 +1 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <svg width="128" height="128" version="1.1" viewBox="0 0 33.867 33.867" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(.70556 0 0 .70556 -5.6444 -5.6444)" clip-rule="evenodd" fill="#0dbd8b" fill-rule="evenodd"><path d="m25.28 10.88c0-1.5906 1.2894-2.88 2.88-2.88 10.604 0 19.2 8.5961 19.2 19.2 0 1.5906-1.2894 2.88-2.88 2.88s-2.88-1.2894-2.88-2.88c0-7.4227-6.0173-13.44-13.44-13.44-1.5906 0-2.88-1.2894-2.88-2.88z"/><path d="m38.72 53.12c0 1.5906-1.2894 2.88-2.88 2.88-10.604 0-19.2-8.5961-19.2-19.2 0-1.5906 1.2894-2.88 2.88-2.88 1.5905 0 2.88 1.2894 2.88 2.88 0 7.4227 6.0173 13.44 13.44 13.44 1.5906 0 2.88 1.2894 2.88 2.88z"/><path d="m10.88 38.72c-1.5906 0-2.88-1.2894-2.88-2.88 0-10.604 8.5961-19.2 19.2-19.2 1.5906 0 2.88 1.2894 2.88 2.88 0 1.5905-1.2894 2.88-2.88 2.88-7.4227 0-13.44 6.0173-13.44 13.44 0 1.5906-1.2894 2.88-2.88 2.88z"/><path d="m53.12 25.28c1.5906 0 2.88 1.2894 2.88 2.88 0 10.604-8.5961 19.2-19.2 19.2-1.5906 0-2.88-1.2894-2.88-2.88 0-1.5905 1.2894-2.88 2.88-2.88 7.4227 0 13.44-6.0173 13.44-13.44 0-1.5906 1.2894-2.88 2.88-2.88z"/></g></svg>

theme/assets/img/messengers/simplex.svg

@@ -1,2 +1 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <svg width="128" height="128" version="1.1" viewBox="0 0 33.867 33.867" xmlns="http://www.w3.org/2000/svg"><defs><linearGradient id="paint0_linear_40_164" x1="135.95" x2="132.1" y1="-.81633" y2="36.986" gradientTransform="matrix(.26458 0 0 .26458 5.515 28.687)" gradientUnits="userSpaceOnUse"><stop stop-color="#01F1FF" offset="0"/><stop stop-color="#0197FF" offset="1"/></linearGradient></defs><g transform="matrix(3.1801 0 0 3.1801 -119.14 -91.124)" clip-rule="evenodd" fill-rule="evenodd" stroke-width=".26458"><path d="m38.412 31.362 1.7518 1.7407 1.8005-1.7891 0.87577 0.87034-1.8005 1.789 1.7518 1.7407-0.90011 0.89453-1.7518-1.7407-1.8005 1.7891-0.87577-0.87035 1.8002-1.7891-1.7515-1.7407z" fill="#030749"/><path d="m41.877 36.625 0.89323-0.88757-5.29e-4 -2.38e-4 1.7867-1.775-1.7526-1.7412 2.65e-4 -1.58e-4 -0.8763-0.87072-1.7523-1.7414 0.89297-0.88756 1.7526 1.7414 1.7865-1.7752 0.8763 0.8707-1.7867 1.7751 1.7526 1.7414 1.7865-1.7751 0.8763 0.87071-1.7867 1.775 1.7529 1.7415-0.89323 0.88757-1.7529-1.7415-1.7862 1.7751 1.7526 1.7415-0.89323 0.88754-1.7526-1.7415-1.7862 1.7752-0.8763-0.87069z" fill="url(#paint0_linear_40_164)"/></g></svg>