Add documentation for kopia repository server controller workflow

[kale-amruta]

Change Overview

This PR adds documentation for kopia repository server controller workflow in kanister

Pull request type

Please check the type of change your PR introduces:

• 🚧 Work in Progress
• 🌈 Refactoring (no functional changes, no api changes)
• 🐹 Trivial/Minor
• 🐛 Bugfix
• 🌻 Feature
• 🗺️ Documentation
• 🤖 Test

Issues

• fixes #issue-number

Test Plan

• 💪 Manual
• ⚡ Unit test
• 💚 E2E

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[uday3927]

Added a few comments. Need to look at the remaining portion of the documentation.

[pavannd1]

Review WIP. Will post my comments tomorrow.

[uday3927]

@kale-amruta I am reviewing this. I will post the comments today.

[uday3927]

Added comments.

[uday3927]

Added comments.

[pavannd1]

@kale-amruta I haven't had a chance to get back to reviewing this. I agree with the FAQ section but that should be considered an enhancement to Kanister docs in general. Let's address that separately later.

One of the things I noticed was the use of Kopia and kopia inconsistently in the docs. One convention to follow (@uday3927 can correct me if I'm wrong) is to use Kopia when referring to the project/tool and kopia when referring to the CLI.

[uday3927]

@pavannd1 Yes, Pavan. We can use Kopia when referring to the official name of the product or tool or emphasizing the specific name or brand.
We can use kopia when mentioning the project or tool in a general or non-emphasized context such as referring to the CLI.

[uday3927]

I provided the feedback.
Please let me know if you have any concerns.

[uday3927]

Added comments.

[uday3927]

A few comments are added.