feat!: align standard captures with upstream

Problem: Sharing highlight queries with upstream tree-sitter and
Helix is difficult.

Solution: Where reasonable, use capture names in tree-sitter's standard
list or Helix's Atom-style hierarchy.

Specifically:

* tree-sitter "standard capture names"
  (https://github.com/tree-sitter/tree-sitter/blob/3f44b896852eb7daaa6df4fb778c9bb52c70c815/highlight/src/lib.rs#L20-L72):

  - `@parameter` -> `@variable.parameter`
  - `@field` -> `@variable.member`
  - `@namespace` -> `@module`
  - `@float` -> `@number.float`
  - `@symbol` -> `@string.special.symbol`
  - `@string.regex` -> `@string.regexp`
  - `@text.*` -> `@markup.*` (`strong`, `italic`, `link`, `strikethrough`; with exceptions; see below)
  - `@text.title` -> `@markup.heading`
  - `@text.literal` -> `@markup.raw`
  - `@text.reference` -> `@markup.link`
  - `@text.uri` -> `@markup.link.url` (in markup links)
  - `@string.special` -> `@markup.link.label` (non-url links)
  - `@punctuation.special` -> `@markup.list` (markdown lists only; move subitems from `@text.todo`)

* Helix captures
  (https://docs.helix-editor.com/master/themes.html#syntax-highlighting):

  - `@method` -> `@function.method`
  - `@method.call` -> `@function.method.call`
  - `@text.{todo,warning,note,danger}` -> `@comment.{error,warning,hint,info,todo}`
  - `@text.diff.{add,delete,}` -> `@diff.{plus,minus,delta}`
  - `@text.uri` -> `@string.special.url` (outside markup)
  - `@preproc` -> `@keyword.directive`
  - `@define` -> `@keyword.directive`(`.define`?)
  - `@storageclass` -> `@keyword.storage`
  - `@conditional` -> `@keyword.conditional`
  - `@debug` -> `@keyword.debug`
  - `@exception` -> `@keyword.exception`
  - `@include` -> `@keyword.import`
  - `@repeat` -> `@keyword.repeat`

* cleanup

  - remove some redundant `@conceal` (but still allow it for conceal-only patterns)
  - remove obsolete `@error` (syntax linting is out of scope for this repo)
  - sort, cleanup capture list in `CONTRIBUTING.md`

3 files changed, 13 insertions, 13 deletions

diff --git a/tests/query/highlights/usd/prims.usda b/tests/query/highlights/usd/prims.usda
index eeeeae920..da9a5d6fe 100644
--- a/tests/query/highlights/usd/prims.usda
+++ b/tests/query/highlights/usd/prims.usda
@@ -4,8 +4,8 @@ def Xform "cube" (
         asset[] payloadAssetDependencies = [@fizz.usd@, @buzz.usd@]
         # <- @type
         #       ^ @keyword
-        #                                   ^ @text.uri
-        #                                               ^ @text.uri
+        #                                   ^ @string.special.url
+        #                                               ^ @string.special.url
     }
 )
 {
@@ -13,13 +13,13 @@ def Xform "cube" (
 
 def "root" (
     add references = @foo.usda@</Model> (offset = 1; scale = 2.0)
-                      # <- @text.uri
+                      # <- @string.special.url
                       #        ^ @string.special
                       #                  ^ @keyword
                       #                           ^ @number
                       #                            ^ @punctuation.delimiter
                       #                              ^ @keyword
-                      #                                      ^ @float
+                      #                                      ^ @number.float
 )
 {
 }
@@ -93,7 +93,7 @@ over "Parent" (
     # <- @function.call
     #       ^ @keyword
     #                     ^ @string.special
-    #                                     ^ @text.uri
+    #                                     ^ @string.special.url
     #                                                 ^ @string.special
 )
 {
@@ -107,12 +107,12 @@ def "foo"
     #           ^ @property
       -414: 14.4
       # <- @number
-      #     ^ @float
+      #     ^ @number.float
       10: 201.0,
       # <- @number
-      #   ^ @float
+      #   ^ @number.float
       10.123: 201.0123,
-      # <- @float
-      #       ^ @float
+      # <- @number.float
+      #       ^ @number.float
     }
 }
diff --git a/tests/query/highlights/usd/properties.usda b/tests/query/highlights/usd/properties.usda
index e518c73f7..790ccfab7 100644
--- a/tests/query/highlights/usd/properties.usda
+++ b/tests/query/highlights/usd/properties.usda
@@ -11,11 +11,11 @@ token[] purpose = ["default", "render"]
 
 rel material:binding:collection:Erasers = None
 # <- @type
-#   ^ @namespace
+#   ^ @module
 #           ^ @punctuation.delimiter
-#            ^ @namespace
+#            ^ @module
 #                   ^ @punctuation.delimiter
-#                    ^ @namespace
+#                    ^ @module
 #                              ^ @punctuation.delimiter
 #                               ^ @variable
 #                                         ^ @constant.builtin
diff --git a/tests/query/highlights/usd/subLayers.usda b/tests/query/highlights/usd/subLayers.usda
index 24581b90a..ddd1dd7af 100644
--- a/tests/query/highlights/usd/subLayers.usda
+++ b/tests/query/highlights/usd/subLayers.usda
@@ -3,7 +3,7 @@
     subLayers = [
     # <- @keyword
         @./model_sub.usda@ (offset = 1)
-        # <- @text.uri
+        # <- @string.special.url
         #                   ^ @keyword
     ]
 )