feat: allow timeout-related commands to be used in multiple channels (#5402)

This changes the behaviour of the following commands:
 - `/ban`
 - `/timeout`
 - `/untimeout`
 - `/unban`

All of those commands now accept one or more `--channel` parameters to override which channel the action should take place in.
The `--channel` parameter accepts a channel ID or channel name with the same syntax as the other "user targets" do (e.g. `id:11148817` or `pajlada`)

examples
Ban user in the chat you're typing in:  
`/ban weeb123`

Ban user in the chat you're typing in, with a reason specified:  
`/ban weeb123 the ban reason`

Ban user in a separate chat, with a reason specified:  
`/ban --channel pajlada weeb123 the ban reason`

Ban user in two separate chats, with a reason specified:  
`/ban --channel pajlada --channel id:117166826 weeb123 the ban reason`


Timeout user in the chat you're typing in:  
`/timeout weeb123`

Timeout user in the chat you're typing in, with a reason specified:  
`/timeout weeb123 10m the timeout reason`

Timeout user in a separate chat, with a reason specified:  
`/timeout --channel pajlada weeb123 10m the timeout reason`

Timeout user in two separate chats, with a reason specified:  
`/timeout --channel pajlada --channel id:117166826 weeb123 10m the timeout reason`


Unban user in the chat you're typing in:  
`/unban weeb123`

Unban user in a separate chat:  
`/unban --channel pajlada weeb123`

Unban user in two separate chats:  
`/unban --channel pajlada --channel id:117166826 weeb123`

mocks/include/mocks/EmptyApplication.hpp

@@ -19,6 +19,11 @@ public:
 
     virtual ~EmptyApplication() = default;
 
+    bool isTest() const override
+    {
+        return true;
+    }
+
     const Paths &getPaths() override
     {
         return this->paths_;
@@ -137,7 +142,7 @@ public:
         return nullptr;
     }
 
-    Logging *getChatLogger() override
+    ILogging *getChatLogger() override
     {
         assert(!"getChatLogger was called without being initialized");
         return nullptr;

mocks/include/mocks/LinkResolver.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include "providers/links/LinkResolver.hpp"
+
+#include <gmock/gmock.h>
+#include <QString>
+#include <QStringList>
+
+namespace chatterino::mock {
+
+class LinkResolver : public ILinkResolver
+{
+public:
+    LinkResolver() = default;
+    ~LinkResolver() override = default;
+
+    MOCK_METHOD(void, resolve, (LinkInfo * info), (override));
+};
+
+class EmptyLinkResolver : public ILinkResolver
+{
+public:
+    EmptyLinkResolver() = default;
+    ~EmptyLinkResolver() override = default;
+
+    void resolve(LinkInfo *info) override
+    {
+        //
+    }
+};
+
+}  // namespace chatterino::mock

mocks/include/mocks/Logging.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "singletons/Logging.hpp"
+
+#include <gmock/gmock.h>
+#include <QString>
+#include <QStringList>
+
+namespace chatterino::mock {
+
+class Logging : public ILogging
+{
+public:
+    Logging() = default;
+    ~Logging() override = default;
+
+    MOCK_METHOD(void, addMessage,
+                (const QString &channelName, MessagePtr message,
+                 const QString &platformName),
+                (override));
+};
+
+class EmptyLogging : public ILogging
+{
+public:
+    EmptyLogging() = default;
+    ~EmptyLogging() override = default;
+
+    void addMessage(const QString &channelName, MessagePtr message,
+                    const QString &platformName) override
+    {
+        //
+    }
+};
+
+}  // namespace chatterino::mock