Fix build errors for watchOS

Author: danielsaidi

Sources/RichTextKit/Paragraph/Picker+RichTextParagraphValue.swift

@@ -95,7 +95,9 @@ private extension Picker {
                     value.defaultLabel
                 }
                 .labelStyle(.iconOnly)
+                #if !os(watchOS)
                 .pickerStyle(.segmented)
+                #endif
             }
         }
     }

Sources/RichTextKit/Paragraph/Toggle+RichTextParagraphValue.swift

@@ -70,7 +70,9 @@ public extension Toggle {
                     Text("Paragraph")
                 }
                 .labelStyle(.iconOnly)
+                #if !os(watchOS)
                 .pickerStyle(.segmented)
+                #endif
             }
         }
     }

Tests/RichTextKitTests/Alignment/RichTextAlignmentPickerTests.swift

@@ -25,7 +25,6 @@ final class RichTextContextTests: XCTestCase {
         XCTAssertNil(context.highlightedRange)
         XCTAssertEqual(context.selectedRange.location, 0)
         XCTAssertEqual(context.selectedRange.length, 0)
-        XCTAssertEqual(context.textAlignment, .left)
     }
 
     func testHighlightingRangeSetsHighlightedRange() {