fix(strapi) add docs to build admin panel (#7369)

* fix(strapi) automatically build admin panel

* fix command and added docs

* replace init with args

* replace arg command

* remove initcontainer

* yarn strapi

* remove init and update docs.

* update docs

* remove extra args defaults

* fix test value

* remove comment

* add yarn run build initContainers

* update init initContainers

* update

* fix datbase host

* update

* update args

* update command

* replace npm with yarn

* remove init container

* update docs

* update word

charts/stable/strapi/docs/installation_notes.md

@@ -0,0 +1,22 @@
+# Installation Notes
+
+- Create a `Jwt Secret` to be used to signed the JWT for Users-Permissions plugin.
+- Create a `Admin Jwt Secret` to be used to sign the JWT for the Admin panel.
+- Set `App Keys` as a json array:
+  - `['keya', 'keyb']`.
+- Set `Node Environment` to **Development** initially.
+- Optionally set `Public URL` to a FDQN with https, ex: `https://api.example.com`.
+- Optionally set `Strapi License` to activate the Enterprise Edition.
+- Enable/Disable `Strapi Disable Update Notifications` for strapi update notifications.
+- Enable/Disable `Fast Refresh` for react near-instant feedback.
+- `Extra Args` can be left empty for the standard defaults or get args from [strapi-new](https://strapi.io/documentation/developer-docs/latest/developer-resources/cli/CLI.html#strapi-new).
+- After the app is installed you might get a `Content Security Policy` error. To solve this you have to manually shell into the app.
+
+  - Apps -> strapi -> 3 dot -> shell:
+  - run the following command to build the admin panel for v4:
+
+    ```shell
+    npm run build
+    ```
+
+- Restart the app after the command is ran successfully.