Update social media links

Author: marcprux

src/data/signatures.yaml

@@ -28,6 +28,7 @@
   url: "article19.org"
   poc: "Mark Dempsey <mark.dempsey@article19.org>"
   region: "GB"
+  social-mastodon: "https://mastodon.world/@article19"
   social-bluesky: "https://bsky.app/profile/article19.bsky.social"
   social-x: "https://x.com/article19org"
 - organization: "Associação Nacional para o Software Livre (ANSOL)"
@@ -44,6 +45,7 @@
   url: "brave.com"
   poc: "Shivan Sahib <shivan@brave.com>"
   region: "US"
+  social-mastodon: "https://mastodon.social/@brave"
   social-bluesky: "https://bsky.app/profile/brave.com"
   social-x: "https://x.com/brave"
 - organization: "The Center for Digital Progress (D64)"
@@ -113,6 +115,7 @@
   poc: "Rik Viergever <rikviergever@e.email>"
   region: "FR"
   social-mastodon: "https://mastodon.social/@e_mydata"
+  social-bluesky: "https://bsky.app/profile/murena-com.bsky.social"
   social-x: "https://x.com/e_mydata"
 - organization: "European Digital Rights (EDRi)"
   url: "edri.org"
@@ -198,6 +201,7 @@
   url: "jmp.chat"
   poc: "Stephen Paul Weber <info@jmp.chat>"
   region: "CA"
+  social-bluesky: "https://bsky.app/profile/blog.jmp.chat"
   social-x: "https://x.com/JMP_chat"
 - organization: "KDE e.V."
   url: "kde.org"
@@ -219,6 +223,8 @@
   url: "molly.im"
   poc: "Oscar Mira <valldrac@molly.im>"
   social-mastodon: "https://fosstodon.org/@mollyim"
+  social-bluesky: "https://bsky.app/profile/molly.im"
+  social-x: "https://x.com/mollyimapp"
 - organization: "Nextcloud"
   url: "nextcloud.com"
   poc: "Jos Poortvliet <jos.poortvliet@nextcloud.com>"
@@ -283,6 +289,7 @@
   region: "US"
   social-mastodon: "https://social.lol/@techlore"
   social-bluesky: "https://bsky.app/profile/techlore.bsky.social"
+  social-x: "https://x.com/techloreinc"
 - organization: "The Tor Project"
   url: "torproject.org"
   poc: "Isabela Fernandes <isabela@torproject.org>"