Add support for storage texture access modes ReadOnly and ReadWrite on WebGPU backend (#5434)

* add support for all storage texture access modes

* update changelog

* fix typo

CHANGELOG.md

@@ -119,6 +119,10 @@ Bottom level categories:
 
 - Allow user to select which MSL version to use via `--metal-version` with Naga CLI. By @pcleavelin in [#5392](https://github.com/gfx-rs/wgpu/pull/5392)
 
+#### WebGPU
+
+- Add support for storage texture access modes `ReadOnly` and `ReadWrite`. By @JolifantoBambla in [#5434](https://github.com/gfx-rs/wgpu/pull/5434) 
+
 ### Bug Fixes
 
 #### General

wgpu/src/backend/webgpu.rs

@@ -1578,10 +1578,10 @@ impl crate::context::Context for ContextWebGpu {
                                 webgpu_sys::GpuStorageTextureAccess::WriteOnly
                             }
                             wgt::StorageTextureAccess::ReadOnly => {
-                                panic!("ReadOnly is not available")
+                                webgpu_sys::GpuStorageTextureAccess::ReadOnly
                             }
                             wgt::StorageTextureAccess::ReadWrite => {
-                                panic!("ReadWrite is not available")
+                                webgpu_sys::GpuStorageTextureAccess::ReadWrite
                             }
                         };
                         let mut storage_texture = webgpu_sys::GpuStorageTextureBindingLayout::new(