Oracle Exadata docs (#45732)

* A handful of smaller fixes.

* Oracle Exadata guide.

* Apply suggestions from code review

Co-authored-by: STeve (Xin) Huang <xin.huang@goteleport.com>

* Apply suggestions from code review

Co-authored-by: Roman Tkachenko <roman@goteleport.com>

* Reorganise, update doc.

* Update docs/pages/enroll-resources/database-access/enroll-self-hosted-databases/oracle-exadata.mdx

Co-authored-by: STeve (Xin) Huang <xin.huang@goteleport.com>

* Update docs/pages/enroll-resources/database-access/enroll-self-hosted-databases/oracle-exadata.mdx

Co-authored-by: STeve (Xin) Huang <xin.huang@goteleport.com>

* A few minor corrections and clarifications.

* Move to 'managed databases' from 'self-hosted'.

* Update index page.

* include intro for non-self-hosted dbs

* extend cspell.json with extra random words

* Fix lint warnings which are treated as errors.

---------

Co-authored-by: STeve (Xin) Huang <xin.huang@goteleport.com>
Co-authored-by: Roman Tkachenko <roman@goteleport.com>

docs/cspell.json

@@ -154,6 +154,19 @@
     "OpenAI",
     "Opsgenie",
     "Orapki",
+    "Exadata",
+    "exadata",
+    "demodb",
+    "exadatadomain",
+    "oraclevcn",
+    "cprops",
+    "mkstore",
+    "dbaas",
+    "acfs",
+    "sqlplus",
+    "sysdba",
+    "paas",
+    "nologo",
     "PFDEBUG",
     "PFSELFTEST",
     "PGCLIENTENCODING",

docs/pages/enroll-resources/database-access/enroll-managed-databases.mdx

@@ -7,4 +7,5 @@ Teleport can protect databases that are managed as a dedicated cloud platform.
 Learn how to enroll the following databases in your Teleport cluster:
 
 - [MongoDB Atlas](./enroll-managed-databases/mongodb-atlas.mdx)
+- [Oracle Exadata](./enroll-managed-databases/oracle-exadata.mdx)
 - [Snowflake](./enroll-managed-databases/snowflake.mdx)