fix: correct Signer component prop in VisibleElements

The Signer component expects signerIndex prop but VisibleElements
was passing current-signer instead. This caused Vue warnings about
missing required prop and errors when trying to access signer data.

Changed :current-signer to :signer-index and removed obsolete
:signer prop since the component now fetches signer data from
the store using the signerIndex.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

src/Components/Request/VisibleElements.vue

@@ -32,9 +32,8 @@
 				</li>
 				<Signer v-for="(signer, key) in document.signers"
 					:key="key"
-					:current-signer="key"
+					:signer-index="key"
 					:class="{ disabled: signerSelected }"
-					:signer="signer"
 					event="libresign:visible-elements-select-signer">
 					<slot v-bind="{signer}" slot="actions" name="actions" />
 				</Signer>