Enable various eslint rules (#1773)

## Description:

Enable various eslint rules.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

src/core/configuration/Config.ts

@@ -26,7 +26,7 @@ export enum GameEnv {
   Prod,
 }
 
-export interface ServerConfig {
+export type ServerConfig = {
   turnIntervalMs(): number;
   gameCreationRate(): number;
   lobbyMaxPlayers(
@@ -62,14 +62,14 @@ export interface ServerConfig {
   cloudflareCredsPath(): string;
   stripePublishableKey(): string;
   allowedFlares(): string[] | undefined;
-}
+};
 
-export interface NukeMagnitude {
+export type NukeMagnitude = {
   inner: number;
   outer: number;
-}
+};
 
-export interface Config {
+export type Config = {
   samHittingChance(): number;
   samWarheadHittingChance(): number;
   spawnImmunityDuration(): Tick;
@@ -170,9 +170,9 @@ export interface Config {
   structureMinDist(): number;
   isReplay(): boolean;
   allianceExtensionPromptOffset(): number;
-}
+};
 
-export interface Theme {
+export type Theme = {
   teamColor(team: Team): Colord;
   territoryColor(playerInfo: PlayerView): Colord;
   specialBuildingColor(playerInfo: PlayerView): Colord;
@@ -190,4 +190,4 @@ export interface Theme {
   allyColor(): Colord;
   enemyColor(): Colord;
   spawnHighlightColor(): Colord;
-}
+};