[ui] fix: not able to maximize/minimize the history dialog on some systems

CHANGELOG.md

@@ -49,6 +49,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - not able to replace an installed package for a new one that replaces it during conflict resolutions (e.g: xapp replaces xapps)
     - AUR: not able to find some repository dependencies when their names are not an exact match (e.g: sc-controller [0.4.7-1] relies on "pylibacl". This dependency now is called "python-pylibacl")
 - UI
+    - history dialog: not able to maximize/minimize it on some systems
     - wrong tooltips
 
 ### i18n

bauh/view/qt/colors.py

@@ -1,3 +0,0 @@
-GREEN = '#91a069'
-ORANGE = '#ECB03E'
-RED = '#FF614E'

bauh/view/qt/history.py

@@ -2,12 +2,11 @@ import operator
 from functools import reduce
 
 from PyQt5.QtCore import Qt
-from PyQt5.QtGui import QColor, QIcon, QCursor
-from PyQt5.QtWidgets import QDialog, QVBoxLayout, QTableWidget, QTableWidgetItem, QHeaderView, QLabel
+from PyQt5.QtGui import QIcon, QCursor
+from PyQt5.QtWidgets import QDialog, QVBoxLayout, QTableWidget, QHeaderView, QLabel
 
 from bauh.api.abstract.cache import MemoryCache
 from bauh.api.abstract.model import PackageHistory
-from bauh.view.qt.colors import GREEN, ORANGE
 from bauh.view.qt.view_model import PackageView
 from bauh.view.util.translation import I18n
 
@@ -16,7 +15,7 @@ class HistoryDialog(QDialog):
 
     def __init__(self, history: PackageHistory, icon_cache: MemoryCache, i18n: I18n):
         super(HistoryDialog, self).__init__()
-        self.setWindowFlags(self.windowFlags() | Qt.WindowSystemMenuHint | Qt.WindowMinMaxButtonsHint)
+        self.setWindowFlags(Qt.CustomizeWindowHint | Qt.WindowMinMaxButtonsHint | Qt.WindowCloseButtonHint)
 
         view = PackageView(model=history.pkg, i18n=i18n)