fix(useBodyScrollLock): avoid settings unrelated styles

[StepanKirichenko]

Fix the issue where useBodyScrollLock saved and then restored unrelated body styles.
Described in the issue #1724

[gravity-ui-bot]

Preview is ready.

[gravity-ui-bot]

Visual Tests Report is ready.

[korvin89]

I suggest you to write this in a little bit different way.

Add this things first:

import get from 'lodash/get';

// ...

const STORED_BODY_STYLE_KEYS = ['overflow', 'paddingRight', 'paddingBottom'] as const;
type StoredBodyStyleKeys = (typeof STORED_BODY_STYLE_KEYS)[number];
type StoredBodyStyle = Partial<Pick<CSSStyleDeclaration, StoredBodyStyleKeys>>;

// ...

function getStoredStyles(): StoredBodyStyle {
    const styles: StoredBodyStyle = {};

    for (const property of STORED_BODY_STYLE_KEYS) {
        styles[property] = get(document.body.style, property);
    }

    return styles;
}

Then use them:

// ...

function setBodyStyles() {
    const yScrollbarWidth = getYScrollbarWidth();
    const xScrollbarWidth = getXScrollbarWidth();
    const bodyPadding = getBodyComputedPadding();

+    storedBodyStyle = getStoredStyles();
-      storedBodyStyle = {
-          overflow: document.body.style.overflow,
-         paddingRight: document.body.style.paddingRight,
-          paddingBottom: document.body.style.paddingBottom,
-     };

    document.body.style.overflow = 'hidden';

    if (yScrollbarWidth) {
        document.body.style.paddingRight = `${bodyPadding.right + yScrollbarWidth}px`;
    }
    if (xScrollbarWidth) {
        document.body.style.paddingBottom = `${bodyPadding.bottom + xScrollbarWidth}px`;
    }
}

// ...

function restoreBodyStyles() {
-    for (const property of ['overflow', 'paddingRight', 'paddingBottom'] as const) {
+    for (const property of STORED_BODY_STYLE_KEYS) {
        const storedProperty = storedBodyStyle[property];
        if (storedProperty) {
            document.body.style[property] = storedProperty;
        } else {
            document.body.style.removeProperty(property);
        }
    }
}

---

It will be more convenient (there will be only one typed list with properties).