[Epic]: Documentation Revise Cycle

[samricotta]

Due to the rapid changes in the SDK it has left the documentation being fragmented and out of date. The documentation needs some love but mostly needs newcomers not to be confused or put off by the fragmentation.

I have divided each of the tasklists into categories of the documentation to keep it organised:

Learn

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1. [Documentation]: Transaction Lifecycle section to be updated cosmos-sdk#20173
   T:Docs +1
   
2. [Documentation]: Introduction and Application Specific Section Update cosmos-sdk#20174
   T:Docs +1
3. [documentation] Main components replace diagram #153
   +0
4. [Feature]: Update block gas documentation cosmos-sdk#17320
   T:Docs T:feature-request +2
   
5. Accounts to x/accounts revise
6. Accounts diagram replace
7. Minimise GRPC section in transactions
8. Store Diagrams
9. Reduce Encoding large code reference
10. Reduce ocap code large reference
11. [Documentation]: Blockchain architecture cosmos-sdk#20176
    T:Docs +1
12. Introduction

Build

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1. [Documentation]: Clean up building apps section cosmos-sdk#20171
   T:Docs +1
   
2. Revise BaseApp #144
   +0

Tutorials

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1. Tutorial for collections #140
   +0
2. x/accounts
3. feat: tutorial on "how to build a module" #116
   documentation +1

This is a working list and shall be added to as time goes on.

General

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1. docs: add docs on how to construct and broadcast transactions cosmos-sdk#11625
   T:Docs +1

[julienrbrt]

Done via cosmos/cosmos-sdk#21429