feat: add replacement map feature

[roshaans]

It was very confusing to have two applications QueryApi.dev-App vs QueryApi.App. As a result, we have removed the dev-App component and use a feature from bos-loader which allows you to write json files with keys/values that are used as replacements in your widgets.

To run local setup, run yarn start:widgets:local

--

Replacement Files

The replacement files should have the following format:
We have three different versions. For local, dev, and mainnet.

{
"REPL_PLACEHOLDER1": "value1",
"REPL_PLACEHOLDER2": "value2"
}
The placeholders in widgets are replaced with specified values. For example the code for the following widget:

return <>

This is ${REPL_PLACEHOLDER1}

${REPL_PLACEHOLDER2}

</>;
will be resolved to:

return <>

This is value1

value2

</>;

[morgsmccauley]

Why are all variables prefixed with REPL_? Seems unrelated

[darunrs]

Oddly enough, if I run yarn dev locally, it puts the server on localhost: 9180 but I imagine that's a simple change in the local.json to update. Optionally, you can drop a line in the README to mention that.

[roshaans]

Why are all variables prefixed with REPL_? Seems unrelated

REPL_* is what the bos-loader tool uses replace all keys with values from the replacement maps in the codebase.

[roshaans]

This PR is not ready atm. Will merge after double checking some configs.