[html] Allow renaming images using F2

Type: <b>Bug</b> For an html file: ``` <img src="./cat.gif"> ``` I'd like to be able to trigger rename on `./cat.gif` to rename both the attribute and the file itself (`cat.gif`) We already support this in markdown files VS Code version: Code - Insiders 1.79.0-insider (Universal) (a7133ae9e21e01ed204b02e17e8fc3e91dcadae7, 2023-05-09T10:00:34.036Z) OS version: Darwin x64 22.4.0 Modes: Sandboxed: Yes <details> <summary>System Info</summary> |Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz (16 x 2400)| |GPU Status|2d_canvas: enabled<br>canvas_oop_rasterization: disabled_off<br>direct_rendering_display_compositor: disabled_off_ok<br>gpu_compositing: enabled<br>metal: disabled_off<br>multiple_raster_threads: enabled_on<br>opengl: enabled_on<br>rasterization: enabled<br>raw_draw: disabled_off_ok<br>video_decode: enabled<br>video_encode: enabled<br>vulkan: disabled_off<br>webgl: enabled<br>webgl2: enabled<br>webgpu: enabled| |Load (avg)|2, 2, 2| |Memory (System)|32.00GB (0.01GB free)| |Process Argv|--crash-reporter-id 48781ca2-1705-4f64-9bab-325055aab55d| |Screen Reader|no| |VM|0%| </details> <!-- generated by issue reporter -->