fix(solace): Adjust Solace implementation

[immasandwich]

Description

For Solace team to review:

• Linting/Prettier was off; if you're using VSCode, use the project ESLint/Prettier settings and use the available VSCode plugins.
• Logo needs to be a .png
• Use range method from lodash rather than declaring your own
• Remove inferred types from arrow definitions, and use constants:

-const stakedToken = contractPosition.tokens.find((t:WithMetaType<Token>) => t.metaType === 'supplied')!;
+const stakedToken = contractPosition.tokens.find(t => t.metaType === MetaType.SUPPLIED)!;

• In findTokens, we were "building" the app specific token. Instead, you can use this.appToolkit.getAppTokenPositions to get the tokens from another existing group, like so:

const appTokens = await this.appToolkit.getAppTokenPositions({
  appId,
  groupIds: [SOLACE_DEFINITION.groups.scp.id],
  network,
});

• Similarly, for SLP, we'd need to pull tokens from the SushiSwap Pools group.

const appTokens = await this.appToolkit.getAppTokenPositions({
  appId: 'sushiswap',
  groupIds: ['pool'],
  network,
});

• After the above two points were addressed, I was able to remove the findTokens helper entirely.
• Always assume the base token match is defined if its found in the list here, so you can use the non-null assertion ! on the results of baseTokens.find.

Checklist

• I have followed the Contributing Guidelines
• (optional) As a contributor, my Ethereum address/ENS is:

How to test?