Set a more useful minimum size for main pane

144px min for a pane that's still useful.
Also set `collapseSidePanesUnderWindowWidth` config option to `450`
instead of `400` by default now.

TODO.md

@@ -4,7 +4,7 @@
 - highlight messages with mention
 - add room members loading indicator
 
-- fix main pane appearance when collapsed
+- fix media_mime
 - fix lag when clicking accounts in the AccountBar with a very long room list
 - fix: on startup, if a room's last event is a membership change,
   it won't be visible in timeline no matter what the user config is

src/backend/user_files.py

@@ -234,7 +234,7 @@ class UISettings(JSONDataFile):
             "clearRoomFilterOnEnter": True,
             "clearRoomFilterOnEscape": True,
             "clearMemberFilterOnEscape": True,
-            "collapseSidePanesUnderWindowWidth": 400,
+            "collapseSidePanesUnderWindowWidth": 450,
             "enableKineticScrolling": True,
             "hideProfileChangeEvents": True,
             "hideMembershipEvents": False,

src/gui/DebugConsole.qml

@@ -54,7 +54,7 @@ HDrawer {
         `Javascript debugging console
 
         Useful variables:
-            window, theme, settings, utils, mainUI, pageLoader
+            window, theme, settings, utils, mainPane, mainUI, pageLoader
             py    Python interpreter
             this  The console itself
             t     Target item to debug for which this console was opened

src/gui/MainPane/MainPane.qml

@@ -8,7 +8,7 @@ HDrawer {
     id: mainPane
     saveName: "mainPane"
     background: Rectangle { color: theme.mainPane.background }
-    minimumSize: theme.controls.avatar.size + theme.spacing * 2
+    minimumSize: theme.mainPane.minimumSize
 
     readonly property alias accountBar: accountBar
     readonly property alias roomList: roomList

src/themes/Glass.qpl

@@ -260,6 +260,7 @@ ui:
 
 
 mainPane:
+    int minimumSize: 144 * uiScale
     color background: "transparent"
 
     topBar:

src/themes/Midnight.qpl

@@ -273,6 +273,7 @@ ui:
 
 
 mainPane:
+    int minimumSize: 144 * uiScale
     color background: "transparent"
 
     topBar: