Update fsharp tree sitter repo reference (helix-editor#11061)

The repository reference used here was a fork from the actual
repository, which has now been moved under ionide organization, where it is
in active maintenance and development.

The commit SHA is the currently latest commit from main branch.

The injections.scm is copied as is from the fsharp treesitter repo
[queries](https://github.com/ionide/tree-sitter-fsharp/blame/main/queries).

The locals.scm is copied from the repo and the capture names are to follow
the standard names:
- Replace @local.definition.var @local.definition.function, and @local.definition.parameter with @local.definition
- Remove (#set! "definition.function.scope" "parent")

The highlights.scm is copied as well from the fsharp
treesitter repo, but modified here to match helix highlight scopes based
on my best guesstimates. The changes made:

- Remove @spell scopes
- Split @comment into @comment.line and @comment.block
- Replace @comment.documentation with @comment.block.documentation
- Replace @character.special with @special
- Replace @variable.member with @variable.other.member
- Replace @type.definition with @type
- Replace @function.member with @function.method
- Replace @module with @namespace
- Replace @constant.macro with @function.macro
- Replace @Property with @variable.other.member
- Replace @variable.member with @variable.other.member
- Replace @variable.parameter.builtin with @variable.builtin
- Replace @function.call with @function
- Replace @Number with @constant.numeric.integer and @constant.numeric.float
- Replace @boolean with @constant.builtin.boolean
- Replace @keyword.conditional with @keyword.control.conditional
- Replace @keyword.return with @keyword.control.return
- Replace @keyword.repeate with @keyword.control.repeat
- Replace @keyword.import with @keyword.control.import
- Replace @keyword.modifier with @Keyword.storage.modifier
- Replace @keyword.type with @Keyword.storage.type
- Replace @keyword.exception with @keyword.control.exception
- Replace @module.builtin with @namespace

languages.toml

@@ -3162,7 +3162,7 @@ language-servers = ["fsharp-ls"]
 
 [[grammar]]
 name = "fsharp"
-source = { git = "https://github.com/kaashyapan/tree-sitter-fsharp", rev = "18da392fd9bd5e79f357abcce13f61f3a15e3951" }
+source = { git = "https://github.com/ionide/tree-sitter-fsharp", rev = "996ea9982bd4e490029f84682016b6793940113b" }
 
 [[language]]
 name = "t32"