Various spelling mistakes (and one use of the wrong verb) across a few domains that...

Various spelling mistakes (and one use of the wrong verb) across a few domains that show up in documentation.

| domain | current | suggestion |
|--------|---------|------------|
| [GtkBitset](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtkbitset.c#L363)       | "Value to add" | "Value to remove" |
| [GtkEntry](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtkentry.c#L3626)        | "\`GtkEntry"   | "\`GtkEntry\`"    |
| [GtkEntry](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtkentry.c#L3566)        | "will be applies" | "will be applied" |
| [GtkEntry](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtkentry.c#L2232)        | "is is in" | "is in" |
| [GtkInfoBar](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/deprecated/gtkinfobar.c#L772) | "in the info bars’s action area" | "in the info bar’s action area |
| [GtkLabel](https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtklabel.c#L3210)        | "Gets the labels attribute list." | "Gets the label's attribute list."