fix(image-pipeline): wire webgl preview shader execution

lib/image-pipeline/backend/webgl/shaders/color-adjust.frag.glsl

@@ -1,4 +1,3 @@
-#version 100
 precision mediump float;
 
 varying vec2 vUv;

lib/image-pipeline/backend/webgl/shaders/curves.frag.glsl

@@ -1,4 +1,3 @@
-#version 100
 precision mediump float;
 
 varying vec2 vUv;

lib/image-pipeline/backend/webgl/shaders/raw-shader-modules.d.ts

@@ -0,0 +1,4 @@
+declare module "*.glsl?raw" {
+  const source: string;
+  export default source;
+}