2026.6.18.616 - Various bugfixes, better deltaTime calculation for input

Hello everyone!

Got a small maintenance build for you with a bunch of bugfixes!

Compatible with current!

Tweaks:

• Switched to more accurate method for computing delta time for the input system and other core engine operations

Locale:

• Merged English locale improvements by @noblefurlyfe

Fixes:

• Patch the sendFriendRequest command on the Headless Server Software to avoid needing to already be friends with the target user (reported by DrSciCortex in #5683, fixed by @j4.lc)
• Fixed API issues causing 500 errors with some cloud variable definitions (fixed by @probableprime) -- Discovered with cool new metrics stuff ProbablePrime has been working on.
• Fixed some PromoCode metrics having mixed case outputs leading to duplicate entries (found & fixed internally by @probableprime)
• Fixed regression in viewport setting being broken on cameras (reported by @code807, issue #6722, fix contributed by @scrongbongle in Renderer PR #41)
• Fixed FOV in PhotoMetadata being incorrect in some cases (reported by @jackthefoxotter, issue #6728)
• Fixed coordinates of photo capture metadata taken with InteractiveCamera being incorrect (reported by @unskilledwolf, @blueberrywolfi, issue #6103)