fix: csp regressions (#38047)

fix #37257 , all details are in the comments

web_src/css/markup/asciicast.css

@@ -1,10 +0,0 @@
-.asciinema-player-container {
-  width: 100%;
-  height: auto;
-}
-
-/* Related: https://github.com/asciinema/asciinema-player/blob/develop/src/components/Terminal.js : <div class="ap-term" ...>
-Old PR: Fix UI regression of asciinema player https://github.com/go-gitea/gitea/pull/26159 */
-.ap-term {
-  overflow: hidden !important;
-}