This PR improves JSDoc injection for syntax highlighting. Now we are only injecting JSDoc in block comments. The regex was mostly adapted from nvim-treesitter's implementation (lua) to a rust regex. https://github.com/nvim-treesitter/nvim-treesitter/blob/eb93c3b2fbe9ca55d70e9297d5c037880b997559/queries/ecma/injections.scm#L1-L6 **Before:** <img width="441" alt="Screenshot 2024-04-20 at 5 51 04 AM" src="https://github.com/zed-industries/zed/assets/20072509/8e77851d-22ad-4dc4-8e10-9ac558d3cf40"> **After:** <img width="441" alt="Screenshot 2024-04-20 at 5 52 05 AM" src="https://github.com/zed-industries/zed/assets/20072509/a607c219-6973-40c3-958c-44a003d008c3"> Release Notes: - Changed detection of JSDoc to only do syntax highlighting in block comments. Improved previous work done in #7826.