Add ability to see host logs (#54)

Squashed commit of the following:

commit 93b2d67cef
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 20:07:33 2023 +0200

    Add filter functionality

commit 30b65a198f
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 19:27:20 2023 +0200

    Renamed `form-row` class to `formrow`

commit 21afb01ea1
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 19:26:04 2023 +0200

    Hide object types in object grid

commit 037d5432a4
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 19:21:54 2023 +0200

    Make auto reload interval input smaller

commit 49d5022027
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 15:08:00 2023 +0200

    Implement logs autoreload

commit 1f8984766b
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 15:04:00 2023 +0200

    Return on error

commit 9c85259964
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 15:03:37 2023 +0200

    Add log error handling

commit 7a98a63866
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 14:46:39 2023 +0200

    Update log tab icon

commit f30827ae2e
Author: Romein van Buren <romein@vburen.nl>
Date:   Sat Jul 1 14:41:59 2023 +0200

    Add host log panel

internal/app/host_logs.go

@@ -0,0 +1,46 @@
+package app
+
+import (
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+type HostLogsResult struct {
+	Total int32    `json:"total"`
+	Logs  []string `json:"logs"`
+	Error string   `json:"error"`
+}
+
+func (a *App) HostLogs(hostKey, filter string) (result HostLogsResult) {
+	client, ctx, close, err := a.connectToHost(hostKey)
+	if err != nil {
+		result.Error = "Could not connect to host"
+		return
+	}
+	defer close()
+
+	var res bson.M
+	err = client.Database("admin").RunCommand(ctx, bson.M{"getLog": filter}).Decode(&res)
+	if err != nil {
+		runtime.LogWarningf(a.ctx, "Could not get %s logs for %s: %s", filter, hostKey, err.Error())
+		result.Error = err.Error()
+		return
+	}
+
+	if res["totalLinesWritten"] != nil {
+		result.Total = res["totalLinesWritten"].(int32)
+	} else {
+		result.Total = 0
+	}
+
+	result.Logs = make([]string, 0)
+
+	switch res["log"].(type) {
+	case bson.A:
+		for _, v := range res["log"].(bson.A) {
+			result.Logs = append(result.Logs, v.(string))
+		}
+	}
+
+	return
+}