Update a.txt

I should've added this entry long ago.

a.txt

@@ -1,6 +1,6 @@
 [Adblock Plus 3.13]
 ! Title: 🏡 a.txt (Imres filtre)
-! Version: 09October2023v1-Personal
+! Version: 09October2023v2-Personal
 ! Expires: 12 hours
 ! Description: This list, and any other lists whose version is suffixed with "-Personal", are _NOT_ intended for public use, except for 1) those who wish to authentically reproduce my list setup in issue reports, and 2) enthusiasts who want to try out pre-spin-off pre-alpha list concepts of mine.
 ! /\/\ Supercompilations: /\/\
@@ -135,6 +135,7 @@ tumblr.com#?#div[tabindex]:is([style^=m],[data-id]:not([class*=" "])):has-text(/
 tumblr.com#?#div[tabindex]:is([style^=m],[data-id]:not([class*=" "])):has-text(/witchblr/i)
 tumblr.com#?#div[tabindex]:is([style^=m],[data-id]:not([class*=" "])):has-text(/timmy/i):has-text(/tecna/i)
 tumblr.com#?#div[tabindex]:is([style^=m],[data-id]:not([class*=" "])):has-text(/tecmy/i)
+tumblr.com#?#div[tabindex]:is([style^=m],[data-id]:not([class*=" "])):has-text(/jack ?frost/i)
 steamdb.info##.tooltipped:has-text(PCGW)
 ||motvind.org^$all
 ||app.element.io^$doc,popup