Support editing method `this` object in json/edit scriptlets, similar to AdGuard `trusted-json-set` `jsonSource=this`

### Prerequisites - [x] I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the [uAssets issue tracker](https://github.com/uBlockOrigin/uAssets/issues). - [x] This is **NOT** a [_YouTube_](https://www.github.com/uBlockOrigin/uAssets/issues/30157), [_Facebook_](https://www.github.com/uBlockOrigin/uAssets/issues/3367) or [_Twitch_](https://www.github.com/uBlockOrigin/uAssets/issues/5184) report. _These sites MUST be reported by clicking their **respective links**_. - [x] This is not a support issue or a question. For support, questions, or help, visit [/r/uBlockOrigin](https://www.reddit.com/r/uBlockOrigin/). - [x] I performed a [cursory search of the issue tracker](https://github.com/uBlockOrigin/uBlock-issues/issues?q=is%3Aissue) to avoid opening a duplicate issue. - [x] The issue is not present after disabling uBO in the browser. - [x] I checked the [documentation](https://github.com/gorhill/uBlock/wiki) to understand that the issue I am reporting is not normal behavior. ### I tried to reproduce the issue when... - [x] uBO is the only extension. - [x] uBO uses default lists and settings. - [x] using a new, unmodified browser profile. ### Description AdGuard supports this with `trusted-json-set` + `jsonSource=this`. uBO's `edit-outbound-object` edits only the return value. For `Array.prototype.find`, this means uBO cannot modify the array before the predicate observes targeted properties. https://github.com/AdguardTeam/Scriptlets/issues/308 ### A specific URL where the issue occurs. ```yaml https://map.naver.com/p/search/%EA%B3%A0%EA%B9%83%EC%A7%91?c=15.00,0,0,0,dh ``` ### Steps to Reproduce 1. Apply `map.naver.com##+js(trusted-edit-outbound-object, Array.prototype.find, '$..[adClickLog, adDescription, adId, adImages]')` or `map.naver.com##+js(edit-outbound-object, Array.prototype.find, '$..[adClickLog, adDescription, adId, adImages]')` 2. Visit the provided URL. 3. Check that `.marker_icon_image_wrap img[src*="https://map.pstatic.net/resource/api/v2/image/maps/ad-marker/"]` is visible in the main window. ### Expected behavior The advert icons are replaced by normal place icons if `map.naver.com#%#//scriptlet('trusted-json-set', 'Array.prototype.find', '$..[adClickLog, adDescription, adId, adImages]', '$remove$', '', 'this')` on AdGuard is applied. ### Troubleshooting information ```text uBlock Origin: 1.71.0 Firefox: 152 filterset (summary): network: 170861 cosmetic: 46059 scriptlet: 33649 html: 3451 listset (total-discarded, last-updated): added: KOR-1: 4765-101, 1h.8m default: user-filters: 0-0, never ublock-filters: 52424-70, 1h.8m ublock-badware: 10340-28, 1h.8m ublock-privacy: 4022-2, 1h.8m ublock-unbreak: 2827-1, 8m Δ ublock-quick-fixes: 481-13, 1h.8m easylist: 97063-127, 1h.8m easyprivacy: 55798-33, 1h.8m urlhaus-1: 24325-6, 1h.8m plowe-0: 3508-1022, 1h.8m filterset (user): [empty] userSettings: userFiltersTrusted: true hiddenSettings: [none] supportStats: allReadyAfter: 260 ms maxAssetCacheWait: 164 ms cacheBackend: indexedDB ```