Improve the table formatting (#2453) (#2510)

This is a suggestion to improve the table formatting. I raised the PR
against the `5.x` branch. If we like this improvement, we can
cherry-pick it to `dev` and `main` branches.

Author: NataliaIvakina

modules/ROOT/pages/introduction.adoc

@@ -66,9 +66,7 @@ a| link:https://www.gnu.org/licenses/quick-guide-gplv3.html[Open source under GP
 |{check-mark}
 |
 
-^s| Native Graph
-|
-|
+3+^s| Native Graph
 
 | link:{neo4j-docs-base-uri}/cypher-manual/current/queries/basic/[Property graph model]
 | {check-mark}
@@ -126,9 +124,7 @@ a| link:https://neo4j.com/docs/cdc/current/[Change Data Capture (CDC)]
 | {check-mark}
 | {check-mark}
 
-^s| Clients and APIs
-|
-|
+3+^s| Clients and APIs
 
 | xref:cypher-shell.adoc[Cypher Shell]
 | {check-mark}
@@ -162,9 +158,7 @@ a| APOC 450+ link:https://neo4j.com/docs/apoc/5/[Core Procedures and Functions]
 |
 | {check-mark}
 
-^s| Indexes and constraints
-|
-|
+3+^s| Indexes and constraints
 
 | link:{neo4j-docs-base-uri}/cypher-manual/current/indexes/search-performance-indexes/overview/[Fast writes via native label indexes]
 | {check-mark}
@@ -198,9 +192,7 @@ a| APOC 450+ link:https://neo4j.com/docs/apoc/5/[Core Procedures and Functions]
 |
 | {check-mark}
 
-^s| Security
-|
-|
+3+^s| Security
 
 | xref:authentication-authorization/manage-privileges.adoc[Role-based access control]
 |
@@ -218,9 +210,7 @@ a| APOC 450+ link:https://neo4j.com/docs/apoc/5/[Core Procedures and Functions]
 |
 | {check-mark}
 
-^s| Data management
-|
-|
+3+^s| Data management
 
 | xref:import.adoc#import-tool-full[Offline import]
 | {check-mark}
@@ -242,9 +232,8 @@ a| APOC 450+ link:https://neo4j.com/docs/apoc/5/[Core Procedures and Functions]
 | {check-mark}
 | {check-mark}
 
-^s| Scale and availability
-|
-|
+3+^s| Scale and availability
+
 | Online xref:backup-restore/online-backup.adoc[backup] and xref:/backup-restore/restore-backup.adoc[restore]
 |
 | {check-mark}
@@ -261,9 +250,7 @@ a| APOC 450+ link:https://neo4j.com/docs/apoc/5/[Core Procedures and Functions]
 |
 | {check-mark}
 
-^s| xref:monitoring/index.adoc[Monitoring and management]
-|
-|
+3+^s| xref:monitoring/index.adoc[Monitoring and management]
 
 | xref:monitoring/metrics/expose.adoc#_prometheus[Endpoints and metrics for monitoring via Prometheus]
 |