Hello and welcome! Thanks for your contribution!

Having sidewalks mapped is not bad at all. We do want to help routing services to create appropriate route for pedestrians. There are several ways to map them (and it's always recommended to firstly check  osm wiki for specific feature, there are tons of details and I promise, you'll discover new nuances even after 10 years of mapping)

So, jump to "How to map" on https://wiki.openstreetmap.org/wiki/Sidewalks

in most cases the rule is simple: if sidewalk is adjoined to the highway and goes along the whole way part - just add sidewalk=left/right/both on the highway - super easy and fast method. if sidewalk has a different shape, not adjoined to the highway (like, there are trees or grass between sidewalk and the road), or there is also a bicycle way or you like micro-mapping - feel free to draw sidewalk as a separate footway (as it was mapped here).

so, specifically in this case your edit removed existing (good) feature without replacing it with any alternative - not good. please either restore these separate sidewalks or map them on the directly on  the highway.

I'd also recommend looking into our dedicated page with special local rules: https://wiki.openstreetmap.org/wiki/Israel
there you'll also find other ways to connect with the community. feel free to ask if anything is unclear.