Toolbar obstructs fullscreen button on small screens

[Ben-ADFA]

Ref. 4477

From email:
"并且快捷符号输入栏在小屏幕手机上会阻挡全屏按钮，也请一并修复。
[Also, please fix the issue where the quick symbol input bar obstructs the full-screen button on phones with small screens.]"

User's specs:
Version : vC-r-0623-1653 (260623162)
CI Build : true
Branch : stage
Commit : 8917fca
Variant : arm64-v8a (release)
Build type : UNOFFICIAL
F-Droid Build : false
F-Droid Version : null
F-Droid Version code : -1
SDK Version : 28
Supported ABIs : [arm64-v8a, armeabi-v7a, armeabi]
Manufacturer : Xiaomi
Device : MI6

[coderabbitai]

🔗 Related PRs

#1291 - fix(ADFA-3837): Show input field above keyboard [merged]
#1358 - ADFA-4051: Invisible symbol input view [merged]

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