chore: bump Std; json% has been upstreamed

.gitignore

@@ -3,3 +3,4 @@
 # JavaScript build artefacts.
 /widget/dist
 /widget/node_modules
+lakefile.olean

ProofWidgets.lean

@@ -10,6 +10,5 @@ import ProofWidgets.Component.Panel.SelectionPanel
 import ProofWidgets.Component.PenroseDiagram
 import ProofWidgets.Component.Recharts
 import ProofWidgets.Data.Html
-import ProofWidgets.Data.Json
 import ProofWidgets.Data.Svg
 import ProofWidgets.Presentation.Expr

ProofWidgets/Compat.lean

@@ -1,7 +1,6 @@
 import Lean.Attributes
 import Lean.Widget.UserWidget
-
-import ProofWidgets.Data.Json
+import Std.Data.Json
 
 /-!
 A compatibility layer aimed at redefining the user widget API in terms of modules and components.

ProofWidgets/Data/Svg.lean

@@ -1,4 +1,3 @@
-import ProofWidgets.Data.Json
 import ProofWidgets.Data.Html
 
 namespace ProofWidgets

README.md

@@ -96,24 +96,6 @@ open scoped ProofWidgets.Jsx
 
 See the `Jsx.lean` and `ExprPresentation.lean` demos.
 
-### `json%` syntax
-
-JSON-like syntax. Invoke with `json%`, escape with `$( _ )`
-
-```lean
-import ProofWidgets.Data.Json
-open scoped ProofWidgets.Json
-
-#eval json% {
-  hello : "world",
-  cheese : ["edam", "cheddar", {kind : "spicy", rank : 100.2}],
-  lemonCount : 100e30,
-  isCool : true,
-  isBug : null,
-  lookACalc: $(23 + 54 * 2)
-}
-```
-
 ### Support for libraries
 
 We have good support for building diagrams with [Penrose](https://penrose.cs.cmu.edu/), and expose

lake-manifest.json

@@ -1,11 +1,12 @@
-{"version": 5,
+{"version": 6,
  "packagesDir": "lake-packages",
  "packages":
  [{"git":
    {"url": "https://github.com/leanprover/std4",
     "subDir?": null,
-    "rev": "e8c27f7d90ee71470558efd1bc197fe55068c748",
+    "rev": "f91a64c789426debe48827ae6ef9efc8fa96bfcc",
     "opts": {},
     "name": "std",
     "inputRev?": "main",
-    "inherited": false}}]}
+    "inherited": false}}],
+ "name": "proofwidgets"}