Reactions - Design review tweaks (#1417)

* Design review tweaks

- truncate reactions as per spec
- add haptic feedback on reacting
- Remove all collapse/expand animations on reactions
- tweak reaction and summary padding
- Fix alignment of time on reaction summary view
- Made sure reaction summary button in horizontal scroller is on screen on appear
- update screenshots

* Update TimelineReactionsView.swift

* Remove dark add more button and check long rtl reactions

* Set colour of  templated add more button

* Fix padding and only inset from the bubble on the leading side as per designs

- Fix padding
- Only inset from the bubble on the leading side as per designs

* Update screenshots

* Fix line length warning.

UnitTests/Sources/StringTests.swift

@@ -80,4 +80,12 @@ class StringTests: XCTestCase {
         result = ""
         XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .rightToLeft), result)
     }
+    
+    func testEllipsizeWorks() {
+        XCTAssertEqual("ellipsize".ellipsize(length: 5), "ellip…")
+    }
+    
+    func testEllipsizeNotNeeded() {
+        XCTAssertEqual("ellipsize".ellipsize(length: 15), "ellipsize")
+    }
 }