WD-12252 dev create /data/mongodb/managed

[immortalcodes]

Done

Created data/mongodb/managed

QA

• Check out this feature branch
• Run the site using the command ./run serve
• View the site locally in your web browser at: http://0.0.0.0:8002/
• Run through the following QA steps
• Perform the checks for the new-webpage.
• Design
• Copydoc
• Demo

Issue / Card

Fixes # WD-12252

[webteam-app]

Demo

Jenkins

demos.haus

[mattea-turic]

@immortalcodes

change the h2 so that it occupies full width pls

replace current webinar img with new one from here. also header here was removed so you can just drop the h2

I think these pricing components have a min-height property which causes a lot of whitespace

128px bottom padding for last section pls

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## feature-mongodb #1352 +/- ## ================================================== Coverage ? 72.04% ================================================== Files ? 13 Lines ? 1073 Branches ? 0 ================================================== Hits ? 773 Misses ? 300 Partials ? 0 ``` | [Flag](https://app.codecov.io/gh/canonical/canonical.com/pull/1352/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=canonical) | Coverage Δ | | |---|---|---| | [python](https://app.codecov.io/gh/canonical/canonical.com/pull/1352/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=canonical) | `72.04% <ø> (?)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=canonical#carryforward-flags-in-the-pull-request-comment) to find out more.

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