fix 'give' query and restore confirmClaim method

src/libs/util.ts

@@ -99,6 +99,11 @@ export function numberOrZero(str: string): number {
   return isNumeric(str) ? +str : 0;
 }
 
+
+/**
+ * from https://tools.ietf.org/html/rfc3986#section-3
+ * also useful is https://en.wikipedia.org/wiki/Uniform_Resource_Identifier#Definition
+ **/
 export const isGlobalUri = (uri: string) => {
   return uri && uri.match(new RegExp(/^[A-Za-z][A-Za-z0-9+.-]+:/));
 };