update leader sign up form

src/lib/PhoneInput.svelte

@@ -8,7 +8,6 @@
 	let {
 		name,
 		value = $bindable<PhoneNumber | undefined>(undefined),
-		number = $bindable(''), // consider making this private, it should only be used internally
 		country = $bindable<ICountry | undefined>(), // consider making this private, it should only be used internally
 		defaultISO,
 		required = false,
@@ -18,7 +17,6 @@
 	}: {
 		name: string;
 		value?: PhoneNumber;
-		number?: string;
 		country?: ICountry;
 		defaultISO?: string;
 		required?: boolean;
@@ -137,7 +135,6 @@
 				type="tel"
 				{placeholder}
 				name="{name}_number"
-				bind:value={number}
 				validate={{
 					required: required,
 					func: () => !required || (value !== undefined && value.isValid())