docs: add 101 changelog

Author: LucasGGamerM

metadata/en-US/changelogs/101.txt

@@ -0,0 +1,9 @@
+- Completely redesigned settings fragment
+- New camera shortcut added to the Composition fragment
+- Fixes many crashes on Calckey
+- Many improvements to Akkoma/Pleroma
+- Many improvements to filters behavior
+- New redesigned Account sheet
+- Add the option to change post content style (Plain text, markdown, etc) on instances that support it
+- Add the ability to view one's server info by tapping on their username inside of anyone's profile
+- Many, many small fixes and improvements