Added some bold text to PDF footer

src/exams/pdf/test.report.footer.tsx

@@ -18,18 +18,18 @@ const TestReportFooter = () => (
   >
     <View style={[styles.spacedRow, styles.textMargin]}>
       <View>
-        <Text>Validity</Text>
+        <Text style={styles.textBold}>Validity</Text>
         <Text>
           This report remains valid for a duration of three months from the test
           date.
         </Text>
       </View>
       <View>
-        <Text>Confidential – circulated for concern people</Text>
+        <Text style={styles.textBold}>Confidential – <Text style={[styles.textFont, styles.textNormal]}>circulated for concern people</Text></Text>
       </View>
     </View>
     <View style={{ paddingTop: 10 }}>
-      <Text>Declaration</Text>
+      <Text style={styles.textBold}>Declaration</Text>
       <Text style={{ paddingTop: 5 }}>
         We hereby declare that exam results on our platform, assessed by AI, are
         not the sole determinants of candidates&apos; English proficiency