Added : customize the color and background color of selected text (#1601)

* Added Emoji Support

* Added Color Picker for font color and background color

* chore: revert code

* feat: re-implement the color picker

* test: add test case for adding color

* test: update appflowy_editor test flag

Co-authored-by: Muhammad Rizwan <haris.arshad.2010@gmail.com>
Co-authored-by: Lucas.Xu <lucas.xu@appflowy.io>

frontend/app_flowy/packages/appflowy_editor/lib/l10n/intl_en.arb

@@ -16,6 +16,8 @@
   "@heading3": {},
   "highlight": "Highlight",
   "@highlight": {},
+  "color": "Color",
+  "@color": {},
   "image": "Image",
   "@image": {},
   "italic": "Italic",
@@ -31,5 +33,45 @@
   "text": "Text",
   "@text": {},
   "underline": "Underline",
-  "@underline": {}
+  "@underline": {},
+  "fontColorDefault": "Default",
+  "@fontColorDefault": {},
+  "fontColorGray": "Gray",
+  "@fontColorGray": {},
+  "fontColorBrown": "Brown",
+  "@fontColorBrown": {},
+  "fontColorOrange": "Orange",
+  "@fontColorOrange": {},
+  "fontColorYellow": "Yellow",
+  "@fontColorYellow": {},
+  "fontColorGreen": "Green",
+  "@fontColorGreen": {},
+  "fontColorBlue": "Blue",
+  "@fontColorBlue": {},
+  "fontColorPurple": "Purple",
+  "@fontColorPurple": {},
+  "fontColorPink": "Pink",
+  "@fontColorPink": {},
+  "fontColorRed": "Red",
+  "@fontColorRed": {},
+  "backgroundColorDefault": "Default background",
+  "@backgroundColorDefault": {},
+  "backgroundColorGray": "Gray background",
+  "@backgroundColorGray": {},
+  "backgroundColorBrown": "Brown background",
+  "@backgroundColorBrown": {},
+  "backgroundColorOrange": "Orange background",
+  "@backgroundColorOrange": {},
+  "backgroundColorYellow": "Yellow background",
+  "@backgroundColorYellow": {},
+  "backgroundColorGreen": "Green background",
+  "@backgroundColorGreen": {},
+  "backgroundColorBlue": "Blue background",
+  "@backgroundColorBlue": {},
+  "backgroundColorPurple": "Purple background",
+  "@backgroundColorPurple": {},
+  "backgroundColorPink": "Pink background",
+  "@backgroundColorPink": {},
+  "backgroundColorRed": "Red background",
+  "@backgroundColorRed": {}
 }