Remove 'distributions' from metadata sent to budget server, because they are too big

src/lib/calculations.svelte.ts

@@ -94,11 +94,13 @@ export function buildBudgetDemandBody(
       budgetEditableParametersName.has(parameterName),
     ),
   )
+  const metadataLite = { ...metadata }
+  metadataLite.distributions = {}
   return {
     amendement: budgetParametricReform,
     base: yearPLF,
     displayMode: includeDisplay ? shared.displayMode : undefined,
-    metadata,
+    metadata: metadataLite,
     output_variables: outputVariables,
     quantile_base_variable: quantileBaseVariable,
     quantile_compare_variables: quantileCompareVariables,