define file extension in .d.ts so typescript doesn't complain

ts/BUILD.bazel

@@ -1,5 +1,6 @@
 load("//ts:prettier.bzl", "prettier", "prettier_test")
 load("//ts:sql_format.bzl", "sql_format_setup")
+load("@npm//@bazel/typescript:index.bzl", "ts_library")
 
 prettier()
 
@@ -13,6 +14,12 @@ prettier_test(
 
 sql_format_setup()
 
+ts_library(
+    name = "image_module_support",
+    srcs = ["images.d.ts"],
+    visibility = ["//visibility:public"],
+)
+
 # Exported files
 #################
 

ts/editor/BUILD.bazel

@@ -22,6 +22,7 @@ ts_library(
     srcs = glob(["*.ts"]),
     tsconfig = "//ts:tsconfig.json",
     deps = [
+        "//ts:image_module_support",
         "//ts/html-filter",
     ],
 )

ts/images.d.ts

@@ -0,0 +1 @@
+declare module "*.svg";