[cache/in-memory] Implement missing cache updates

[twilight-rs]

[cache/in-memory] Implement missing cache updates

[Erk-]

I think we should cache everything we can for now, maybe later we can tune it to cache less.

[Arzte]

For Presence Update, what do we want to cache, there can be a lot of info in a Presence Update

Example Presence Update

PresenceUpdate {
    activities: [
        Activity {
            application_id: None,
            assets: None,
            created_at: Some(
                1576683758892,
            ),
            details: None,
            flags: None,
            id: Some(
                "custom",
            ),
            instance: None,
            kind: Custom,
            name: "Custom Status",
            emoji: Some(
                ActivityEmoji {
                    name: "chisesotired",
                    id: Some(
                        "650885599774900224",
                    ),
                    animated: Some(
                        false,
                    ),
                },
            ),
            party: None,
            secrets: None,
            state: Some(
                "Gender of the day: Tired and Cold",
            ),
            timestamps: None,
            url: None,
        },
    ],
    client_status: ClientStatus {
        desktop: Some(
            DoNotDisturb,
        ),
        mobile: None,
        web: None,
    },
    game: Some(
        Activity {
            application_id: None,
            assets: None,
            created_at: Some(
                1576683758892,
            ),
            details: None,
            flags: None,
            id: Some(
                "custom",
            ),
            instance: None,
            kind: Custom,
            name: "Custom Status",
            emoji: Some(
                ActivityEmoji {
                    name: "chisesotired",
                    id: Some(
                        "650885599774900224",
                    ),
                    animated: Some(
                        false,
                    ),
                },
            ),
            party: None,
            secrets: None,
            state: Some(
                "Gender of the day: Tired and Cold",
            ),
            timestamps: None,
            url: None,
        },
    ),
    guild_id: Some(
        GuildId(
            197169999494774784,
        ),
    ),
    roles: Some(
        [
            RoleId(
                514281318515867680,
            ),
            RoleId(
                366385309921050625,
            ),
            RoleId(
                394332081691426818,
            ),
            RoleId(
                309714880691306499,
            ),
            RoleId(
                401928764507947018,
            ),
        ],
    ),
    status: DoNotDisturb,
    user: UserId {
        id: UserId(
            77812253511913472,
        ),
    },
}

[github-actions]

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