Move compile_sass.bzl to /ts + Remove core.css from data/web (unused?)

qt/aqt/data/web/css/BUILD.bazel

@@ -1,6 +1,6 @@
 load("@bazel_skylib//rules:copy_file.bzl", "copy_file")
 load("//ts:copy.bzl", "copy_files_into_group")
-load("compile_sass.bzl", "compile_sass")
+load("//ts:compile_sass.bzl", "compile_sass")
 
 compile_sass(
     srcs = glob(
@@ -17,12 +17,6 @@ compile_sass(
     visibility = ["//visibility:private"],
 )
 
-copy_file(
-    name = "core_css",
-    src = "//ts/sass:core.css",
-    out = "core.css",
-)
-
 copy_files_into_group(
     name = "editor",
     srcs = [
@@ -35,7 +29,6 @@ copy_files_into_group(
 filegroup(
     name = "css",
     srcs = [
-        "core.css",
         "css_local",
         "editor",
     ],

ts/sass/BUILD.bazel

@@ -1,13 +1,4 @@
-load("@io_bazel_rules_sass//:defs.bzl", "sass_binary", "sass_library")
-
-sass_binary(
-    name = "core_css",
-    src = "core.scss",
-    visibility = ["//visibility:public"],
-    deps = [
-        ":core_lib",
-    ],
-)
+load("@io_bazel_rules_sass//:defs.bzl", "sass_library")
 
 sass_library(
     name = "buttons_lib",
@@ -18,7 +9,6 @@ sass_library(
     visibility = ["//visibility:public"],
 )
 
-
 sass_library(
     name = "card_counts_lib",
     srcs = [