[PR] Adding deployment guide

[LuchoTurtle]

closes #342

[LuchoTurtle]

I'm still in the process of detailing the deployment info.
I've also made some upgrades to the dependencies, namely flutter-quill, as the dependency versioning issue has been surpassed after having merged the PRs messed up the versioning.

I've added a guide on Play Store and was starting to do the same to App Store as well. I have to wait for my Developer Account from Google to be verified. Since I'm waiting, I'm trying to work around it and write up as much as I can. I'll try to write about automatic deployment with GitHub Actions whilst I wait.

The strangest thing is happening when I try to enrol into the Apple Developer Program. Every time I click on Enroll now, the page just refreshes and nothing happens.

I've tried looking for answers (such as https://developer.apple.com/forums/thread/723431) but nothing has worked. Perhaps Pi-hole is messing with redirection?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dd61af7) 93.51% compared to head (2ffb242) 93.51%.
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #343   +/-   ##
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  Coverage   93.51%   93.51%           
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  Files          24       24           
  Lines         447      447           
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  Hits          418      418           
  Misses         29       29           

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[nelsonic]

@LuchoTurtle connect directly to the MEO router if PiHole is causing you any issues. 💭

[LuchoTurtle]

I'm almost finishing up the Android part of the guide.
Was testing with a mock test app and had a lot of setting up to do both with Google Cloud and Google Play consoles.

All of these have been documented and I've tried testing a release roll-out and it worked (see https://github.com/dwyl/app/actions/runs/6618383576/job/17977095655).

The secrets that are currently present in this repository are my own/related to my account on Google Play. It may be better for DWYL to register as an organization and invite me as a collaborator so these variables are changed accordingly.

[LuchoTurtle]

I've finalised the Apple section and written a workflow, as well.
I'm not submitting this for review yet because I need access to Apple's developer account to check if everything works correctly and then both Apple and Google dev accounts to set the repository secrets correctly.

[nelsonic]

Thanks. 🙏 ❤️