fix: add missing params and fix incorrect calls to custom alert components

frontend/app/pages/account/change-password.vue

@@ -58,7 +58,7 @@ const changePassword = async () => {
             <ErrorAlert v-if="error" :error="error" />
 
             <!-- Success alert -->
-            <SuccessAlert v-else-if="success" text=" Heslo bolo úspešne zmenené." />
+            <SuccessAlert v-else-if="success" title="Heslo aktualizované" text="Heslo bolo úspešne zmenené." />
 
             <v-form v-else :disabled="loading" @submit.prevent="changePassword">
                 <!-- Nové heslo -->

frontend/app/pages/dashboard/admin/companies/index.vue

@@ -134,7 +134,7 @@ const deleteCompany = async () => {
                     </p>
 
                     <!-- Error message -->
-                    <ErrorAlert v-if="deleteError" :error="error" />
+                    <ErrorAlert v-if="deleteError" :error="deleteError" />
                 </v-card-text>
                 <v-card-actions>
                     <v-spacer></v-spacer>

frontend/app/pages/dashboard/student/internship/edit/[id].vue

@@ -85,7 +85,7 @@ async function handleUpdateOfBasicInfo(internship: NewInternship) {
                 <h2>Nahratie dokumentov</h2>
 
                 <ErrorAlert v-if="data?.status.status !== InternshipStatus.CONFIRMED"
-                    text='Vaša prax nie je v stave "Schválená" a teda nemôžete nahrať dokumenty.' />
+                    error='Vaša prax nie je v stave "Schválená" a teda nemôžete nahrať dokumenty.' />
 
                 <InternshipDocumentEditor v-else :internship="data!" @successful-submit="refresh" />
             </div>